(cosec 3 theta - 2)(cot 2 theta - 1) =0 find theta
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(cosec3θ−2)(cot2θ−1)=0
⟹cosec3θ=2 or cot2θ=1
⟹3θ=nπ+(−1)n6π or 2θ=nπ±4π
⟹θ=3nπ+(−1)n18π or θ=2nπ±8π
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