prove that sin2
y x cot y x cosec y = cos y
Answers
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Question
sin^2y x cot y x cosec y = cos y.
Solution
L.H.S.
=> sin^2y x cot y x cosec y .
=> sin^2y ×cos y/sin y × 1/sin y.
sin y will be cancelled out.
=> cos y.
=> R.H.S.
Formula used.
- cot y= cos y/sin y.
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