Math, asked by sudipta74, 11 months ago

sin²1 degree +sin²3 degree+sin²5 degree+.......+sin²85 degree+sin²87degree+sin²89degree=?

Answers

Answered by sprao53413

2

Answer:

(sin^2 1°+sin^2 89°)+(sin^2 3°+sin^2 87°)+...........22 brackets +sin^2 45°

22(1)+1/2=45/2

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