If cosec theta=2/3,then 2 (cosec²theta+cot²theta) is
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Step-by-step explanation:
cosecA=2/3
sinA=3/2
2[cosec^2A+cosec^2A-1]
=2(2Cosec^2A-1)
=2(2×4/9-1)
=2(8-9)/9
=-2/9
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