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Maths
A Level

Integrate 2x^5 - 1/4x^3 - 5

I = x6/3 - x4/16 -5x + C

Answered by Rocio C. Maths tutor
2432 Views

What is a Binomial distribution and when, in an exam, should I use it?

The Binomial distribution is a sequence of N trials which each have a probability, p, of occurring. Each trial is either successful (with probability p) or not. It can be used to give us the probability o...

Answered by Dean B. Maths tutor
2800 Views

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 ...

Answered by Nicholas B. Maths tutor
2622 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...

Answered by Matthew W. Maths tutor
4243 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...

Answered by Daniel A. Maths tutor
3956 Views

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