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cotθ -tanθ = $\frac{6}{5}$ হলে, নিচের কোনটি সঠিক?

θ \frac{1}{2} \cos^{- 1} (\frac{5}{\sqrt{34}})

θ \frac{1}{2} \cos^{- 1} (\frac{3}{\sqrt{34}})

θ \frac{1}{2} \cos^{- 1} (\frac{10}{\sqrt{34}})

θ \frac{1}{2} \cos^{- 1} (\frac{3}{\sqrt{34}})

ANS : 0

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