Question : If $7 \cot P = 24$, then find $\sin P$.
Option 1: $\frac{625}{7}$
Option 2: $\frac{24}{25}$
Option 3: $\frac{49}{625}$
Option 4: $\frac{7}{25}$
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Correct Answer: $\frac{7}{25}$
Solution :
Given:
$7 \cot P = 24$
⇒ $\cot P = \frac{24}{7}$
We know, $\operatorname{cosec}^2P - \cot^2P =1$
⇒ $\operatorname{cosec}^2P=1+(\frac{24}{7})^2$
⇒ $\operatorname{cosec}^2P= \frac{49+576}{49}=\frac{625}{49}$
⇒ $\operatorname{cosec}P=\sqrt{\frac{625}{49}}=\frac{25}{7}$
$\therefore \sin P=\frac{1}{\operatorname{cosec}P} =\frac{7}{25}$
Hence, the correct answer is $\frac{7}{25}$.
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