If $\tan \theta=-\frac{4}{8}$, then $\sin \theta$ is equal to
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If $\tan \theta=-\frac{4}{8}$, then $\sin \theta$ is equal to

(A) $-4 / 5$ but not $4 / 5$

(B) $-4 / 5$ or $4 / 5$

(C) $4 / 5$ but not $-4 / 5$

(D) None of these

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Best answer

SOLUTION —

Since, $\tan \theta=-\frac{4}{3}$

$\Rightarrow \theta$ lies in 2nd or 4th quadrant.

$\therefore \quad \sin \theta=+\frac{4}{5} \text { or }-\frac{4}{5}$

So, The correct option will be (B).

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