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Step 1: Rearrange y = arctan(x) as tan(y) = x.

Step 2: Use implicit differentiation to differentiate this with respect to x, which gives us:

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Sin^2(x) cannot be integrated in its current form so you must use trigonometric identities to change sin^2(x) into something else.

Use the formula for cox(2x): cos(2x)=cos(x+x)=cos^2(x)-s...

Effective use of graphs is almost guaranteed to bring you extra points in the exam. There are a few things to help you use them well.1) Use relevant graphs. There is no point, for example, drawing a Deman...

When responding to a data-based question, there are a few things to which you need to pay attention:1) When reading the text, highlight the most important point: who is arguing a point, statistics provide...

From my personal experience, the best way to plan an essay is as follows:1) Write down all the points you can think in relation of the question, separating them into two categories: arguments supporting t...