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Maths
A Level

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...

AA
Answered by Abraar A. Maths tutor
2793 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 ...

CJ
Answered by Calum J. Maths tutor
3817 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...

ZS
Answered by Zivanayi S. Maths tutor
3123 Views

Express the polynomial x^3+x^2-14x-24 as a product of three linear factors.

Firstly, use the factor theorem to determine one factor. Substitute factors of 24 into the equation, beginning at plus or minus 1 and then increasing. The first factor found will be -2, therefore (x+2) is...

SW
Answered by Scarlet W. Maths tutor
14522 Views

Why does inverse sin,cos or tan of numbers have multiple answers

When told to find angles when equations are involving sin,cos or tan at a level a range will be provided. You have to find all the angles within the given range. Multiple angles will be found as there wil...

SA
Answered by Shivam A. Maths tutor
4873 Views

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