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Evaluate sin(Tan^-10)

1 Answer

2 votes


\tan x=0 for
x=n\pi, where
n is any integer. The inverse tangent function returns numbers between
-\frac\pi2 and
\frac\pi2. The only multiple of
\pi in this range is 0, so
\tan^(-1)0=0.

Then


\sin\left(\tan^(-1)0\right)=\sin0=\boxed0

User Dirk Hoekstra
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