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Maths
A Level

Integrate (x^2 +2)(2x-6) with respect to x.

For a simple integration like this, begin by expanding the brackets to get 2x3-6x2+4x-12. Next each term should be integrated with respect to x, begin with the first term, each peer ...

NB
Answered by Nicholas B. Maths tutor
3270 Views

Find the coordinates of the stationary points for the curve y = x^4 - 2*x^2 + 5.

First solve to find dy/dx.dy/dx = 4x^3 - 4xThe stationary points occur when dy/dx = 0. Solve the equation to find the values of x for when dy/dx = 0.4x(x^2 - 1) = 0 x = 0, x = 1, x = -1Finally su...

MW
Answered by Matthew W. Maths tutor
5651 Views

The curve C has equation y = x^3 - 3x^2 - 9x + 14. Find the co-ordinates and nature of each of the stationery points of C.

Step 1: Differentiate y with respect to x. dy/dx = 3x^2 - 6x - 9
Step 2: Equate to zero and solve. 3x^2 - 6x - 9 = 0(x - 3)(x+1) = 0x = 3, x = -1
Step 3: Substitute into original equation to fin...

DA
Answered by Daniel A. Maths tutor
4744 Views

Differentiate 8x^3+4x^2+2

24x^2+8x

MB
Answered by Maximilian B. Maths tutor
3455 Views

y = 2t^2, and x = 3t^3 - 2. Find dy/dx in terms of t.

dy/dt = 4t dx/dt = 9t^2dy/dx = dy/dt * dt/dx= 4/(9t)

TM
Answered by Theo M. Maths tutor
6091 Views

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