Question

the value of (tan29cot61-cosec^2 61 )+cot^2 54 -sec^2 36 + (sin^2 1 +sin^2 3 + sin^2 5 +...........+sin^2 89) is equal to

1. 221/2
2. 22
3. 20 1/2
4. 21

Answer 1

Answer:

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