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Let S=C20+1.C21C0+2.C22C1+3.C23C2+.........+n.C2nCn−1 Where Cr=nCr then which of the following is wrong |
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Answer» Let S=C20+1.C21C0+2.C22C1+3.C23C2+.........+n.C2nCn−1 Where Cr=nCr then which of the following is wrong |
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