# Derivatives of Trigonometric Functions

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Find derivatives of these functions chosing appropriate methods:

a) f(x) = 4x3 - 2x cos x

b) g(x) = (x-2)3(x2+2x+1)3 sin2x / (x-1)2(x2+4)

c) h(t) = sin (2t2 -6)

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##### Solution Summary

Derivatives of trigonometric functions are found. The solution is explained and well presented.

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