Question
$\lim _{x \rightarrow \frac{\pi}{2}}(\cos x)^{\cos x}$ is(a) 1(b) 0(c) $\frac{1}{\mathrm{e}}$(d) $\frac{2}{\mathrm{e}}$
Step 1
Taking the natural logarithm on both sides, we get $\ln y = \cos x \ln \cos x$. Show more…
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