B. cosec²θ / cosec²θ
ExplanationStep 1: This is a basic trigonometric identity. Step 2: 1 + cot²θ = cosec²θ. Step 3: Remember cot and cosec identity together.
Step 1: यह basic trigonometric identity है। Step 2: 1 + cot²θ = cosec²θ होता है। Step 3: cot और cosec वाली identity को साथ याद रखें।
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