Cosec square 63+tansquare24/cotsquare66+secsquare27
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cosec square63+Sec square27+tan square(90-66)/cot square66
=cosec square (90-27) +Sec square27+cot square66/cotsquare66
=sec square27+Sec square27+1
=2secsquare27+1
=2×(1+tan square 27)+1
=2+2tansquare27+1
=3+2tansquare27
=cosec square (90-27) +Sec square27+cot square66/cotsquare66
=sec square27+Sec square27+1
=2secsquare27+1
=2×(1+tan square 27)+1
=2+2tansquare27+1
=3+2tansquare27
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