Thursday, 12 September 2013

max , min

find the minimum and maximum value of
(sin x - cos x - 1)(sin x + cos x + 1) for all real x
at

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