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Question

Evaluate: cosec263o+tan224ocot266o+sec227o+sin263o+cos263osin27o+sin27osec63o2(cosec265otan225o)

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Solution

cosec263o+tan224ocot266o+sec227o+sin263o+cos263osin27o+sin27osec63o2(cosec265otan225o)
=sec2(9063o)+cot2(9024)cot266o+sec227+....
=sec227o+cot266ocot266o+sec227o+sin263+sin27ocosec27o+cos263ocos63o2(sec225otan225)
=1+1+sin263o+cos363o2.

1071447_828810_ans_171136ff8a844bfaa147b5ea91fddfdb.jpeg

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