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Maths
A Level

How can you remember what sin(x) and cos(x) differentiate or integrate to?

Calculus processes concering sin(x) and cos(x) can be imagined like turning a wheel (insert diagram here, would show in tutorial). Turning the wheel clockwise is the process of differentiating, turning th...

Answered by Sam T. Maths tutor
3798 Views

The polynomial p(x) is, p(x)= x3-5x2-8x+48.Use the Factor Theorem to show that (x + 3)is a factor of p(X)

First of all it is using the factor theorem. 

so need to use that to show it is a factor 

We do this by P of (-3) should = 0 

So substitute x with -3 

 p(-3)= (-3)3 - 5 (-3)2- ...

Answered by Mehr-Un-Nisa B. Maths tutor
4896 Views

Find the area R under the curve when f(x)=xcos(x) between the limits x=0 and x=2

After careful consideration, we can see the function f(x) is the product of two individual functions. Usually, to find the area under a curve we integrate its function between a set limit. Given our situa...

Answered by Abraar A. Maths tutor
2763 Views

Common mistakes made in A-Level exams

We all make silly mistakes when in comes to Maths, so here are some common mistakes to help you out. 1. Partial Fractions: Many students think x+2/(x+1)^2 becomes A/(x+1) + B/(x+1) This ...

Answered by Calum J. Maths tutor
3754 Views

find the integral of f'(x)=2x+5

f'(x)=2x+5

note that f'(x)=nxn-1

so 2x is originally xas this is 2x2-1

and 5 is originally 5x1-1

 f(x)= x2+5x+c...

Answered by Zivanayi S. Maths tutor
3081 Views

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