Find the value of sec 15/cosec 75+sin72/cos18-tan33/cot 57
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Step-by-step explanation:
sec15/cosec75+sin72/cos18-tan33/cot57
=sec(90-75)/cosec75+sin(90-18)/cos18 -tan(90-57)/cot57
=cosec75/cosec75+cos18/cos18 -cot57/cot57
=1+1-1
=1
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