if-ctg-2-and-3pi-2-lt-lt-2pi-find-sin-

Question Number 149137 by mathdanisur last updated on 03/Aug/21

i f c t g α = - 2 a n d \frac{3 π}{2} < α < 2 π

f i n d s i n α = ?

Commented by liberty last updated on 03/Aug/21

\sin α = - \frac{1}{\sqrt{5}}

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