Top answers

How do you do simple integration?

If you have an expression like 6x^2, to integrate it you have to add 1 to the power. Therefore, the new power will be 3. Then divide the whole expression by the new power so it will be 6x^3 divided by 3, whi...
DS
Answered by Della S. • Maths tutor
3652 Views

Find the area under the curve of f(x)=4x/(x^2+1) form x = 0 to x = 2.

Solution of all integration problems starts with investigation of a given function. We can’t represent it with standard functions, i.e. linear, power or trigonometric. Second step would be to try substitutio...
ID
Answered by Igors D. • Maths tutor
6103 Views

Why a sodium ion has a smaller radius than a sodium atom?

Let’s look closer at the sodium atom. Really close, so we could see. Atom is a neutral species, with 11 protons in the nucleus. We can find that information in the periodic table. 11 proton charge should be ...
ID
Answered by Igors D. • Chemistry tutor
14263 Views

How do I go about analysing a poem?

I like to think of the process like a Russian doll, there are lots of steps to the process just as there are dolls within the one big doll. Start with the overall message, give it a read through- it often ta...
AL
4992 Views

How to I use critics in my essays?

One of the main feature which differentiates between GCSE and A-level English Literature, is that at A-level you're expected to integrate literary criticism into your work. You might find this strange and un...
FS
12919 Views