જો cosec2 θ + cot2 θ = \(5\over3\) , તો cot 2θની કિંમત શું છે?

1
\(1\over\sqrt3\)
2
- \(1\over\sqrt3\)
3
\(2\over\sqrt3\)
4
- \(2\over\sqrt3\)

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