CosecA (1+cosA) (cosecA-cotA)
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Answer is 1
because
cosec a (1+cosa)(cosec a -cot a)
=(cosec a +(cos a × cosec a))(cosec a -cot a)
=(cosec a +cot a)(cosec a - cot a)
=1
HOPE IT HELPS YOU
because
cosec a (1+cosa)(cosec a -cot a)
=(cosec a +(cos a × cosec a))(cosec a -cot a)
=(cosec a +cot a)(cosec a - cot a)
=1
HOPE IT HELPS YOU
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