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This is a common question on A2 Maths papers as it tests both the ability to use the chain rule and the ability to differentiate natural logarithms. y = ln(6x) Alarm bells should start ri...

De Moivre's theorem states that (cosø + isinø)ⁿ = cos(nø) + isin(nø). Assuming n = 1 
    (cosø + isinø)¹ = cos(1ø) + isin(1ø)
which is true so ...

First I would ask what have they tried, and see if any of their attempts are on the right track - and then guide them from there, if not: 3^x is quite a difficult form to deal with, so is there any other ...

Say that we have a differentiated equation f'(x), and we want to find the orginal equation f(x) from this. We would have to use integration, as differentiation and integration are the reverse of each othe...

X² -> 2X

3X -> 3

7 -> 0

Therefore X² + 3X + 7 integrates to 2X + 3