Top answers

Given that f(x)= (4/x) - 3x + 2 find i) f'(x) and ii) f''(1/2)

This question is asking us to find the first order derivative of f(x) with respect to x, then the second order derivative when x=1/2i) Firstly, let's consider (d/dx)4/x:There are two ways to think about diff...
VB
Answered by Verity B. • Maths tutor
5612 Views

What is the difference between the political systems in the United Kingdom and the United States?

The fundamental difference between the political systems in the UK and the US, is that the UK has a Parliamentary Monarchy and the US is a Federal Republic, which changes how the systems work and who they ar...
Answered by • Politics tutor
33329 Views

Show me why the product of a squared and a cubed is a to the power of 5.

When we find the product of two terms that has the same base (in this case, a), we can simply add the powers. This can be explained using knowledge of squares and cubed. a 2 = a x a and a 3 = a x a x a and s...
LM
Answered by Leon M. • Maths tutor
7931 Views

What structure should I use for my paragraphs in an English Literature A-Level essay question?

This is one of the most common questions received at A-Level, and it is one of the questions which best highlights the jump from GCSE to A-Level. My understanding of the requirements of the A-Level paper all...
Answered by • English Literature tutor
4806 Views

expand (x-3)^2

firstly explain (x-3) 2 = (x-3)(x-3) on the whiteboard I'd draw a square grid with each of the numbers, then I'd multiply out. E.g. x multiplied by x = x 2 ; x multiplied by -3 = -3x and so on.. (remembering...
IT
Answered by Imogen T. • Maths tutor
11486 Views