How to differentiate Composite Trig. functions raised to a power (part 1) : ExamSolutions
Here you will be shown how to differentiate composite trigonometric functions of the form y = sin^n[f(x)], cos^n[f(x)] and tan^n[f(x)] by using the chain rule. Four examples are given and at any point you may wish to try them before watching the method of solution.
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