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f(x)=|{:(cos x, x, 1),(2sin x, x^(2), 2x...

` f(x)=|{:(cos x, x, 1),(2sin x, x^(2), 2x),(tan x, x, 1):}|." Then find the vlue of lim_(x to 0) (f'(x))/(x).`

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To solve the problem, we need to find the limit: \[ \lim_{x \to 0} \frac{f'(x)}{x} \] where ...
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