Prove the following:-
1. Cosec A + Cot A = 1/Cosec A - Cot A
2. Cot² A - Cos² A = Cos² A × Cot² A
3. (Sec A - Cos A) × (Sec A + Cos A) = Tan² A + Tan² A
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in these क्वेश्चंस वी यूज ट्रिगोनोमेट्रिक आईडेंटिटीज cot square theta + 1 is equal to cos square theta and sin square theta + cos square theta is equal to
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