Question: Suppose that f(theta) = 3 cos theta+ sintheta (i) Show that f(theta) = a+ b. cos 2theta, where a and b are integers which

Suppose that f(theta) = 3 cos theta+ sintheta (i) Show that f(theta)

Suppose that f(theta) = 3 cos theta+ sintheta (i) Show that f(theta) = a+ b. cos 2theta, where a and b are integers which should be found. (ii) Using your answer to part (a) and integration by parts, find the exact value of 6. 0 f(0) de

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