Hi,

I am in my late 20's and am going for an interview next week where I am required to do a maths test (arrgghh!) I havent done maths now in nearly 10 years but I was quite good at the time, but Im after forgetting all the principles now. I was wondering if you could give me some help on answering the questions below please - Id really appreciate it.

Differentiate the following:

f(x) = (x/x+1) 2(squared)

f(x) = -x +xlnx

f(x) = xe to the power of 2x + 10x