express ( cosec ∅- cot∅²)in term of cos∅
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cosec theta =1/cos theta
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Answer:
(cosec theta - cot theta)^2
(1/sin theta - cos theta/sin theta)^2
(1-cos theta/sin theta)^2
(1-cos^2 theta/ sin^2 theta)
sin^2 theta/ sin^2 theta
1/1 = 1
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