HP Prime for All

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Syntax

trigcos(Expr)

Description

Simplifies the argument Expr using the formulas sin(x)^2+cos(x)^2=1 and tan(x)=sin(x)/cos(x) (privileging cosine)

Example

trigcos(sin(x)^4+sin(x)^2) returns cos(x)^4-3*cos(x)^2+2

trigcos — Discussion

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