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This shows how to use a variable name annotation to put a hat on a variable name inside the \simplify command.

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Given a graph of the form either a.cos(bx) or a.sin(bx), identify the amplitude and period.

Basic Algebra question, expand one set of brackets, coefficients may be positive or negative, pronumerals randomised.

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Adding and subtracting surds. Parts b) and c) involve simplification of surds.

Basic questions on the Wheatstone Bridge

Potential Divider

Basic potential divider questions

Resistors in series and parallel