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If (\cosec \theta=\frac{5}{2}) and (\theta) is in the first quadrant, what is (\sin \theta)?यदि (\cosec \theta=\frac{5}{2}) और (\theta) प्रथम चतुर्थांश में है, तो (\sin \theta) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\frac{2}{5})(\frac{2}{5})
( \cosec \theta=\frac{1}{\sin \theta}), so ( \sin \theta=\frac{2}{5}). In exams remember cosecant and sine are reciprocals.(\cosec \theta=\frac{1}{\sin \theta}), इसलिए (\sin \theta=\frac{2}{5}) है। परीक्षा में cosecant और sine reciprocal हैं।
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