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c o t θ c o t 3 θ = 1

সমীকরণের সাধারণ সমাধান -

(2 n + 1) \frac{π}{4}

(2 n + 1) \frac{π}{8}

n \frac{π}{4}

(2 n - 1) \frac{π}{2}

ANSWER : 2

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