Search our library of Maths A Level questions

Top answers

Maths

A Level

How do you differentiate the curve y = 4x^2 + 7x + 1? And how do you find the gradient of this curve?

To begin with, this question requires you to differentiate the curve y = 4x² + 7x +1 in order to find the gradient. To differentiate this function y in respect to x, we need to reduce the power...

Answered by Katie S. • Maths tutor

3588 Views

A curve has the equation y=3x^2-2x+7, find the gradient of the line at the point (6,3)

dy/dx = 34

Answered by Ben C. • Maths tutor

4706 Views

How do I prove (x-2) is a factor of the function f(x) = x^2-4x+4?

First equate the factor to equal 0 then solve:x -2= 0;x = 2;
now plug the number 2 into all the X values:
(2)^2-4(2) + 4 = 8-8 = 0

Answered by Luke C. • Maths tutor

3040 Views

Given that y = 16x + 1/x , find the two values of x for which dy/dx = 0

The first stage of this question involves differentiating the equation of y in terms of x given to us. In order to differentiate, we first need to write y in terms of base x (where all the terms are x to ...

Answered by Andrew K. • Maths tutor

4688 Views

The arithmetic series is given by (k+1)+(2k+3)+(3k+5)+...+303. a)Find the number of term in the series in terms of k. b) Show that the sum of the series is given by (152k+46208)/(k+2). c)Given that S=2568, find k.

a) I would start by trying to see if the student can do it by himself. In the case the student does not know how to start, I would start by asking him if can find the general term. Here there are two ways...

Answered by Bogdan P. • Maths tutor

8143 Views