Top answers

All subjects
A Level

Find the stationary points on y = x^3 + 3x^2 + 4 and identify whether these are maximum or minimum points.

First, you will need to differentiate the function with respect to x. Finding dy/dx.For polynomials, this is done by taking one away from the old power and multiplying the coefficient by the old power and...

LH
Answered by Laurence H. Maths tutor
8658 Views

Outline and explain the structure of the personality [6 marks]

The ID operates in the unconscious and is responsible for instant gratification. It contains the libido, which forms our sexual desires. The super-ego is known as the 'morality principle' and punishes the...

LB
Answered by Luka B. Psychology tutor
2937 Views

'I don't study biology at a-level so I feel like I can't do it, especially because most of the people in my class do and I can't keep up'

Biopsychology and Neurology are actually a lot easier than they initially sound. I do not think it is necessary to study biology. It might help, but it certainly does not need to hold you back. It's under...

NP
Answered by Nicole P. Psychology tutor
1944 Views

Let f(x)=x^x for x>0, then find f'(x) for all x>0.

A common misconception from many students when tackling this problem is that they think the usual 'power rule' works. However, in this case the power is itself a function of x and not just a constant, so ...

MF
2149 Views

Integrate the function f(x)=3^x+2 with respect to x

First note that a=eln(a) and ln(ab)=bln(a)By substituting a=3x we get a=3x=eln(3^x)=exln(3), and hence f(x)=exln(3)

CC
Answered by Christian C. Maths tutor
3212 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning