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Mathematica > Trigonometric Functions >

Built-in Mathematica Symbol

TrigReduce

TrigReduce[expr]
rewrites products and powers of trigonometric functions in expr in terms of trigonometric functions with combined arguments.

Given a trigonometric polynomial, TrigReduce typically yields a linear expression involving trigonometric functions with more complicated arguments.

TrigReduce automatically threads over lists, as well as equations, inequalities and logic functions.

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