Excellent Ideas in Education

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Prove that abscissa of a point P which is equidistant from points with coordinates A(7,1) and B(3,5)

Prove that abscissa of a point P which is equidistant from points with coordinates A(7,1) and B(3,5) Excellent Ideas in Education

7 views - 2 days ago

The sum of the first n terms of an AP is 252.If the first term is -16 and the last term is 72.

The sum of the first n terms of an AP is 252.If the first term is -16 and the last term is 72. Excellent Ideas in Education

15 views - 5 days ago

If y=2cos(logx)+3sin(logx),prove that x^2(d^2y/ dx^2) +x(dy/dx)+y=0 / Second Order Derivative

If y=2cos(logx)+3sin(logx),prove that x^2(d^2y/ dx^2) +x(dy/dx)+y=0 / Second Order Derivative Excellent Ideas in Education

33 views - 1 week ago

Prove that 3+√7/5 is an irrational number / Prove that 2√3-1 is an irrational number

Prove that 3+√7/5 is an irrational number / Prove that 2√3-1 is an irrational number Excellent Ideas in Education

28 views - 1 week ago

If x=rsinA cosC, y=rsinA since and z=rcosA, prove that x^2+y^2+z^2=r^2 / Trigonometry Class 10 Maths

If x=rsinA cosC, y=rsinA since and z=rcosA, prove that x^2+y^2+z^2=r^2 / Trigonometry Class 10 Maths Excellent Ideas in Education

18 views - 2 weeks ago

A two digit number is such that product of its digits is 14.If 45 is added to the number, the digits

A two digit number is such that product of its digits is 14.If 45 is added to the number, the digits Excellent Ideas in Education

54 views - 2 weeks ago

A sphere of weight 100 N is tied to a smooth wall by a string as shown / Equilibrium in Engineering

A sphere of weight 100 N is tied to a smooth wall by a string as shown / Equilibrium in Engineering Excellent Ideas in Education

28 views - 3 weeks ago

If y^x+x^y+x^x=a^b, find dy/dx / Find the derivative of y^x+x^y+x^x=a^b,find dy/dx / Differentiation

If y^x+x^y+x^x=a^b, find dy/dx / Find the derivative of y^x+x^y+x^x=a^b,find dy/dx / Differentiation Excellent Ideas in Education

51 views - 1 month ago

If tan A=root2-1, then prove that tan A/1+tan^2 A = root2/4 / Trigonometry Class 10 Maths

If tan A=root2-1, then prove that tan A/1+tan^2 A = root2/4 / Trigonometry Class 10 Maths Excellent Ideas in Education

49 views - 1 month ago

If alpha and beta are the zeroes of the polynomial 25p^2-15p+2,find quadratic polynomial 1/3α & 1/3β

If alpha and beta are the zeroes of the polynomial 25p^2-15p+2,find quadratic polynomial 1/3α & 1/3β Excellent Ideas in Education

185 views - 1 month ago

If (7+root5)/(7-root5)-(7-root5)/(7+root5) = a+7/11root5b / (7+√5)/(7-√5)-(7-√5)/(7+√5)= a+7/11√5b

If (7+root5)/(7-root5)-(7-root5)/(7+root5) = a+7/11root5b / (7+√5)/(7-√5)-(7-√5)/(7+√5)= a+7/11√5b Excellent Ideas in Education

83 views - 1 month ago

If 2a+b=12 and ab=15 then find the value of 8a^3+b^3 / Algebra Class 9 Maths

If 2a+b=12 and ab=15 then find the value of 8a^3+b^3 / Algebra Class 9 Maths Excellent Ideas in Education

26 views - 1 month ago

If α and β are the roots of the equation 7x^2-3x-2=0, then the value of α/(1-α^2) + β/(1-β^2)

If α and β are the roots of the equation 7x^2-3x-2=0, then the value of α/(1-α^2) + β/(1-β^2) Excellent Ideas in Education

88 views - 1 month ago

Deepak has to cut the circular pizza into 8 equal slices such that all 8 of them get a slice.

Deepak has to cut the circular pizza into 8 equal slices such that all 8 of them get a slice. Excellent Ideas in Education

21 views - 1 month ago

Prove that: 3(sin theta-cos theta)^4 + 6(sin theta +cos theta)^2 + 4(sin^6 theta + cos^6 theta) =13

Prove that: 3(sin theta-cos theta)^4 + 6(sin theta +cos theta)^2 + 4(sin^6 theta + cos^6 theta) =13 Excellent Ideas in Education

173 views - 1 month ago

If α and β are the roots of the equation 2x^2-3x+1=0. Form the equation whose roots α/2β+3 & β/2α+3

If α and β are the roots of the equation 2x^2-3x+1=0. Form the equation whose roots α/2β+3 & β/2α+3 Excellent Ideas in Education

115 views - 1 month ago

Clinometer is a tool that is used to measure the angle of elevation

Clinometer is a tool that is used to measure the angle of elevation Excellent Ideas in Education

21 views - 1 month ago

The India meteorological department observes seasonal and annual rainfall every year in different

The India meteorological department observes seasonal and annual rainfall every year in different Excellent Ideas in Education

33 views - 2 months ago

A school is organizing a grand cultural event to show the talent of its students.To accommodate the

A school is organizing a grand cultural event to show the talent of its students.To accommodate the Excellent Ideas in Education

43 views - 2 months ago

A street shopkeeper prepares 396 gulab jamun and 342 rasgullas. He packs them in combination each

A street shopkeeper prepares 396 gulab jamun and 342 rasgullas. He packs them in combination each Excellent Ideas in Education

76 views - 2 months ago

A TV tower stands vertically on a bank of canal. From a point on the other bank directly opposite

A TV tower stands vertically on a bank of canal. From a point on the other bank directly opposite Excellent Ideas in Education

27 views - 2 months ago

Determine the values of m and n if equations have infinite solutions: (2m-1)x+3y-5=0, 3x+(n-1)y-2=0

Determine the values of m and n if equations have infinite solutions: (2m-1)x+3y-5=0, 3x+(n-1)y-2=0 Excellent Ideas in Education

34 views - 2 months ago

If cosec theta - sin theta = l and sec theta - cos theta = m, prove that l^2m^2(l^2 + m^2 + 3)=1

If cosec theta - sin theta = l and sec theta - cos theta = m, prove that l^2m^2(l^2 + m^2 + 3)=1 Excellent Ideas in Education

71 views - 2 months ago

Determine the value of k so that the equations (3k+1)x+3y=2, (k^2+1)x+(k-2)y=5 have no solutions

Determine the value of k so that the equations (3k+1)x+3y=2, (k^2+1)x+(k-2)y=5 have no solutions Excellent Ideas in Education

59 views - 2 months ago

In a flight of 2800 km an aircraft was slowed down due to bad weather. Its average speed for the

In a flight of 2800 km an aircraft was slowed down due to bad weather. Its average speed for the Excellent Ideas in Education

87 views - 2 months ago

A shafts carries four masses A, B, C and D of magnitude 200 kg, 300 kg, 400kg and 200 kg

A shafts carries four masses A, B, C and D of magnitude 200 kg, 300 kg, 400kg and 200 kg Excellent Ideas in Education

1.4K views - 2 months ago

Find the zeroes of the polynomial y^2+3/2√5y-5 by factorisation method and verify the relationship

Find the zeroes of the polynomial y^2+3/2√5y-5 by factorisation method and verify the relationship Excellent Ideas in Education

417 views - 2 months ago

Given that sinθ+cosθ=x, prove that sin^4θ+cos^4θ=2-(x^2-1)^2/2 / Given that sin theta+cos theta =x

Given that sinθ+cosθ=x, prove that sin^4θ+cos^4θ=2-(x^2-1)^2/2 / Given that sin theta+cos theta =x Excellent Ideas in Education

51 views - 3 months ago

There are three consecutive integers such that the square of the first increased by the product of

There are three consecutive integers such that the square of the first increased by the product of Excellent Ideas in Education

27 views - 3 months ago

Balancing of masses rotating in different planes (without angle) / Balancing of masses by graphical

Balancing of masses rotating in different planes (without angle) / Balancing of masses by graphical Excellent Ideas in Education

1.6K views - 3 months ago

Prove that -7-2 root 3 is an irrational number / Prove that -7-2√3 is an irrational number

Prove that -7-2 root 3 is an irrational number / Prove that -7-2√3 is an irrational number Excellent Ideas in Education

139 views - 3 months ago

Prove that (cosA-sinA+1)(cosA+sinA-1)=cosecA+cotA / Trigonometry Maths

Prove that (cosA-sinA+1)(cosA+sinA-1)=cosecA+cotA / Trigonometry Maths Excellent Ideas in Education

81 views - 3 months ago

The sum of first 9 terms of an AP is 162.The ratio of its 6th term to its 13th term is 1:2.Find 15th

The sum of first 9 terms of an AP is 162.The ratio of its 6th term to its 13th term is 1:2.Find 15th Excellent Ideas in Education

40 views - 3 months ago

How to find the centroid of composite shapes / Statics / Applied Mechanics

How to find the centroid of composite shapes / Statics / Applied Mechanics Excellent Ideas in Education

77 views - 3 months ago

Solve the following quadratic equations using quadratic formula mnx^2-(m+n)^3x+(m+n)^2=0

Solve the following quadratic equations using quadratic formula mnx^2-(m+n)^3x+(m+n)^2=0 Excellent Ideas in Education

16 views - 3 months ago

If one zeros of the polynomial 2x^2-4kx+8x-7 is negative of the other, find zeroes of polynomial

If one zeros of the polynomial 2x^2-4kx+8x-7 is negative of the other, find zeroes of polynomial Excellent Ideas in Education

72 views - 3 months ago

Two ships are sailing in the sea on either side of a lighthouse.The angles of depression to the two

Two ships are sailing in the sea on either side of a lighthouse.The angles of depression to the two Excellent Ideas in Education

50 views - 3 months ago

In a garden, saplings of rose flowers were planted at equal intervals to form a spiral pattern.

In a garden, saplings of rose flowers were planted at equal intervals to form a spiral pattern. Excellent Ideas in Education

30 views - 3 months ago

Prove that tan theta/1-cot theta+cot theta/1-tan theta=1+sec theta cosec theta / Trigonometry Maths

Prove that tan theta/1-cot theta+cot theta/1-tan theta=1+sec theta cosec theta / Trigonometry Maths Excellent Ideas in Education

276 views - 3 months ago

Differentiate log x power + x power log x / Differentiation of (log x)^x+x^(log x) / Derivative

Differentiate log x power + x power log x / Differentiation of (log x)^x+x^(log x) / Derivative Excellent Ideas in Education

172 views - 3 months ago

Integral of 0 to pi xsinx/(1+cos^2x)dx / Integrate 0 to pi xsinx/(1+cos^2x)dx / Integration

Integral of 0 to pi xsinx/(1+cos^2x)dx / Integrate 0 to pi xsinx/(1+cos^2x)dx / Integration Excellent Ideas in Education

169 views - 3 months ago

If y=(tan^-1x)^2 show that (x^2+1)^2 d^2y/dx^2+2x(1+x^2)dy/dx=2 / Differentiation / Calculus

If y=(tan^-1x)^2 show that (x^2+1)^2 d^2y/dx^2+2x(1+x^2)dy/dx=2 / Differentiation / Calculus Excellent Ideas in Education

225 views - 3 months ago

Integration of cot inverse (1-x+x^2)dx from 0 to 1 / Integral 0 to 1 of cot^-1(1-x+x^2)dx

Integration of cot inverse (1-x+x^2)dx from 0 to 1 / Integral 0 to 1 of cot^-1(1-x+x^2)dx Excellent Ideas in Education

165 views - 3 months ago

Solve the differential equation dy/dx-3y cotx=sin2x given y=2 when x=pi/2 / Differentiation

Solve the differential equation dy/dx-3y cotx=sin2x given y=2 when x=pi/2 / Differentiation Excellent Ideas in Education

152 views - 3 months ago

Integral of x^3/(x^4+3x^2+2)dx / Integral of x cube/x power 4+3xsquare+2 / Integration

Integral of x^3/(x^4+3x^2+2)dx / Integral of x cube/x power 4+3xsquare+2 / Integration Excellent Ideas in Education

141 views - 4 months ago

If (x-y)e^(x/x-y) =a,prove that ydy/dx+x=y /Differentiation / Calculus

If (x-y)e^(x/x-y) =a,prove that ydy/dx+x=y /Differentiation / Calculus Excellent Ideas in Education

120 views - 4 months ago

Integrate 0 to pi/2 of 1/(2cosx+4sinx)dx / Integration / Class 12 Maths

Integrate 0 to pi/2 of 1/(2cosx+4sinx)dx / Integration / Class 12 Maths Excellent Ideas in Education

148 views - 4 months ago

If x=a(cost+log tan t/2) and y= asint find d^2y/dx^2 / Differentiation

If x=a(cost+log tan t/2) and y= asint find d^2y/dx^2 / Differentiation Excellent Ideas in Education

417 views - 4 months ago

Ankit visited in a mall with his father.He sees that three shops are situated at P, Q and R as shown

Ankit visited in a mall with his father.He sees that three shops are situated at P, Q and R as shown Excellent Ideas in Education

229 views - 4 months ago

Find the ratio in which the point(8/5,y) divides the line segment joining the points (1,2) and (2,3)

Find the ratio in which the point(8/5,y) divides the line segment joining the points (1,2) and (2,3) Excellent Ideas in Education

55 views - 4 months ago

If x=(√3-√2)/(√3+√2) and y=(√3+√2)/(√3-√2) then find the value of x^2+xy+y^2 / Class 9 Maths

If x=(√3-√2)/(√3+√2) and y=(√3+√2)/(√3-√2) then find the value of x^2+xy+y^2 / Class 9 Maths Excellent Ideas in Education

255 views - 4 months ago

Integrate (cos theta)/((4+sin^2 theta)(5-4cos^2 theta)dtheta / Integral cosθ/((4+sin^2θ)(5-4cos^2θ)

Integrate (cos theta)/((4+sin^2 theta)(5-4cos^2 theta)dtheta / Integral cosθ/((4+sin^2θ)(5-4cos^2θ) Excellent Ideas in Education

271 views - 4 months ago

A 5 cm tall object is placed at a distance of 30 cm from a convex mirror of focal length 15 cm

A 5 cm tall object is placed at a distance of 30 cm from a convex mirror of focal length 15 cm Excellent Ideas in Education

171 views - 4 months ago

An object is placed 18 cm in front of mirror.If the image is formed at 4 cm to the right of the

An object is placed 18 cm in front of mirror.If the image is formed at 4 cm to the right of the Excellent Ideas in Education

136 views - 4 months ago

An object is placed at a distance of 30 cm in front of a convex mirror of focal length 15 cm.

An object is placed at a distance of 30 cm in front of a convex mirror of focal length 15 cm. Excellent Ideas in Education

195 views - 4 months ago

An arrow 2.5 cm high is placed at a distance of 25 cm from a diverging mirror of focal length 20 cm

An arrow 2.5 cm high is placed at a distance of 25 cm from a diverging mirror of focal length 20 cm Excellent Ideas in Education

1.5K views - 4 months ago

The total current supplied to the circuit by the battery is

The total current supplied to the circuit by the battery is Excellent Ideas in Education

584 views - 4 months ago

When an object is placed at a distance of 20 cm before a concave mirror. A real image is obtained

When an object is placed at a distance of 20 cm before a concave mirror. A real image is obtained Excellent Ideas in Education

118 views - 4 months ago

How to find equivalent resistance across the two ends A & B / Series and Parallel Circuits Problems

How to find equivalent resistance across the two ends A & B / Series and Parallel Circuits Problems Excellent Ideas in Education

607 views - 4 months ago

If zeroes α and β of a polynomial x^2-7x+k are such that α-β=1,then find the value of k

If zeroes α and β of a polynomial x^2-7x+k are such that α-β=1,then find the value of k Excellent Ideas in Education

305 views - 4 months ago