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Maths
A Level

Split the following expression into partial fractions of the form A/(x-3) + B/(4x+2) : (19x-15)/(4x+2)(x-3)

Set the expression equal to the form required in the solution. Multiply both sides by (4x-2)(x-3) to get rid of the denominator and acquire an expression of the form: 19x-15 = A(4x+2) + B(x-3). From here ...

AS
Answered by Alec S. Maths tutor
4369 Views

Differentiate with respect to x: (4x^2+3x+9)

8x + 3. When you differentiate you must take each term separately. For the first term (4x^2) you must times the coefficent of x (4) by the power (2) and subtract one from the power. Giving an answer of 8 ...

DW
Answered by Dan W. Maths tutor
3708 Views

The line AB has equation 3x + 5y = 7 (a. Find the gradient of AB)

This is an easy one as long as you remember the important equation y = mx + c. I can't express how important it is for you to learn that equation.

Step one: find y. Do this by taking 3x away from b...

PW
Answered by Penny W. Maths tutor
4455 Views

How do you find the gradient of a curve?

Unlike a straight line, the gradient of a curve is not a constant i.e. not one single number. To find the gradient of a curve, you different the equation of the curve. To find the gradient at a specific p...

AM
Answered by Anna M. Maths tutor
34860 Views

Use integration by parts to find the integral of sin(x)*exp(x)

First, we choose u=sin(x),v'=exp(x). Using differentiation and integration of standard exponential and trigonometric functions => u'=cos(x),v=exp(x). From this we use the formula for integration by par...

PL
Answered by Philip L. Maths tutor
6174 Views

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