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The Maxima on-line user's manual

Algebra Calculator

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Trigsimp

Function: trigsimp (<expr>) Employs the identities sin(x)^2 + cos(x)^2 = 1 and cosh(x)^2 - sinh(x)^2 = 1 to simplify expressions containing tan, sec, etc., to sin, cos, sinh, cosh.

b:d*cos(k*t)^2;
h:r*cos(w*t)*tan(b);
trigsimp(h);
trigsimp(diff(h,t,2));

trigreduce, ratsimp, and radcan may be able to further simplify the result.

demo ("trgsmp.dem") displays some examples of trigsimp.

(%o1)                                true
(%i2) 

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