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Let xi,i=1,2,3,…,n be the solutions of the equation tan−1x+cot−1(−|x|)=2tan−16x. Then 6n∑i=1xi is equal to

Answer» Let xi,i=1,2,3,,n be the solutions of the equation tan1x+cot1(|x|)=2tan16x. Then 6ni=1xi is equal to


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