If f() = cot and f(a) = -3, find the exact value of: (a) f (-a)
Question:
If f(θ) = cot θ and f(a) = -3, find the exact value of:
(a) f (-a)
(b) f(a) + f (a + π) + f (a + 4π)
Use the periodic and even–odd properties.
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