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Maths
A Level

Find the area bounded by the curve x^2-2x+3 between the limits x=0 and x=1 and the horizontal axis.

In order to find the area bounded by a curve and the horizontal axis, we must integrate the curve between the specified limits.

Firstly we must integrate the curve x^2-2x+3. To integrate ...

DG
Answered by Diljot G. Maths tutor
4136 Views

Find where the graph of y=3x^2+7x-6 crosses the x axis

At the point where the line crosses the x axis, y=0

3x^2+7x-6=0

(3x-2)(x+3)=0

3x-2=0 or x+3=0

giving x=2/3 and x=-3

so the line cro...

DB
Answered by Demi B. Maths tutor
4328 Views

Differentiate x^2 + y^2 with respect to x

use the chain rule on the y^2 term to get 2y*(dy/dx)

hence the overall solution is 2x + 2y*(dy/dx)

KD
Answered by Ken D. Maths tutor
23903 Views

Solve the equation d/dx((x^3 + 3x^2)ln(x)) = 2x^2 + 5x, leaving your answer as an exact value of x. [6 marks]

This may look complicated at first but it can be broken down into a number of simple steps...

For the left side of the equation, the d/dx tells you we are differentiating and since (x

RH
Answered by Robbie H. Maths tutor
7182 Views

How do you rationalise the denominator?

Defintions

Rationalising the denominator means rewriting a fraction so that the bottom only contains rational numbers.

Remember: A rational number is one that can be ...

JO
Answered by John O. Maths tutor
5551 Views

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