Question
If tan θ X A = sin θ then A = ?
✓
Answer
$\tan \theta \times A=\sin \theta \quad \text {.... [Given] }$
$\therefore \frac{\sin \theta}{\cos \theta} \times A=\sin \theta$
$\therefore \frac{1}{\cos \theta} \times A=1$
$\therefore A=\cos \theta$
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