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If θ ∈ ⎥ ⎦ ⎤ ⎢ ⎣ ⎡ π π − 3 4 , 6 7 , then the number of solutions of 3 cosec 2 θ − 2 ( 3 − 1) cosec θ − 4 = 0 , is equal to :

1. 8
2. 10
3. 7
4. 6

Correct answer: 6

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