Evaluate sec (90-theta) cosec theta - tan (90-theta) / cot theta + cos square 25 + cos sqare 65 degree
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Sec(90°-theta) cosec theta-tan(90-theta)/cot theta+ cos square 25°+cos square 65°
=Cosec square theta- cot theta/cot theta+cos square 25°+sin square 25°
=cosec square theta-1+1
=cosec square theta
Hope it will be helpful..
=Cosec square theta- cot theta/cot theta+cos square 25°+sin square 25°
=cosec square theta-1+1
=cosec square theta
Hope it will be helpful..
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