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What is (\cosec^2 \theta-1) equal to?(\cosec^2 \theta-1) किसके बराबर होता है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (\cot^2 \theta)(\cot^2 \theta)
From (\cosec^2 \theta=1+\cot^2 \theta), (\cosec^2 \theta-1=\cot^2 \theta). Practice similar identities in pairs.(\cosec^2 \theta=1+\cot^2 \theta) से (\cosec^2 \theta-1=\cot^2 \theta) होता है। समान पहचान सूत्रों की जोड़ी बनाकर अभ्यास करें।
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