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Consider the expansion of (a+b+c+d)^(6). Then thesum of all the coefficients of the term Which contains all of a,b,c, and d is |
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Answer» 4096 SUM of coefficient which contains all of a,b,c and d = Number of ways of distributing six DISTINCT OBJECTS infourt boxes such that no box remains EMPTY `= 4^(6) - .^(4)C_(1)3^(6) +.^(4)C_(1) - .^(4)C_(1)1^(6) = 1560` |
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