1

Functions

Evaluate, combine and undo functions.

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Evaluate and compose functionsReplace the input everywhere it appears.Domain and inversesFind which inputs are allowed, then undo the function.Unit checkSix mixed questions from this unit. Score 80% to finish it.

2

Exponentials and logarithms

Switch between exponents and logs.

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What logarithms meanA logarithm asks what power you need.Solve exponential and log equationsRewrite the equation, then check that the answer works.Unit checkSix mixed questions from this unit. Score 80% to finish it.

3

The unit circle

Use radians and exact trig values.

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Radians$\pi$ radians equals $180^{\circ }$.Exact trig valuesUse the reference angle, then the quadrant for the sign.Unit checkSix mixed questions from this unit. Score 80% to finish it.