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Let Sn=cot−1(3x+2x)+cot−1(6x+2x)+cot−1(10x+2x)+⋯+upto n terms, where x>0. If limn→∞Sn=1, then x equals to

Answer»

Let Sn=cot1(3x+2x)+cot1(6x+2x)+cot1(10x+2x)++upto n terms, where x>0. If limnSn=1, then x equals to



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