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Let f(n)=n∑k=1cosec−1√(k2+1)(k2+2k+2). Then the value of limn→∞12f(n)π is |
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Answer» Let f(n)=n∑k=1cosec−1√(k2+1)(k2+2k+2). Then the value of limn→∞12f(n)π is |
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