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Find the sum of the series .^15 C0+^(15)...

Find the sum of the series `.^15 C_0+^(15)C_1+^(15)C_2+...............+^(15)C_7`.

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CENGAGE PUBLICATION-BINOMIAL THEOREM-All Questions
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  2. If (1+x-2x^2)^(20)=a0+a1x+a2x^2+a3x^3+...+a(40)x^(40), then find the v...

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  4. Find the sum sum(k=0)^(10).^(20)Ck.

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