Thursday 12 September 2013

PERIOD OF THE FUNCTIONS

Find the fundamental period of the function
f(x) = cos (tan x + cot x) . cos (tan x - cot x) 
at

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Define \(f: \mathbb{R} \rightarrow \mathbb{R}\) by \[f(x)= \begin{cases}(1-\cos x) \sin \left(\frac{1}{x}\right), & x \neq 0 \\ 0, &a...