koi proove kardo plz
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(1-cos²A)cosec²A=1
L.H.S
→(1-cos²A)cosec²A
→cosec²A-cos²A*cosec²A
→cosec²A-cos²A*1/sin²A
→cosec²A-cos²A*1/tan²A*cos²A
→cosec²A-1/tan²A
→cosec²A-cot²A
→1
R.H.S
→1
Since L.H.S. = R.H.S.
Therefore (1-cos²A)cosec²A=1
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sayantani18:
cosec thita rute 1 - cos square thita = 1
kardo plzzz
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