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  • The sum of all the coefficient of those terms in the expansion of <img alt="(a+b+c+d)

The sum of all the coefficient of those terms in the expansion of (a+b+c+d)^8 which contains b but not c 

 

Option: 1

6305


Option: 2

6561


Option: 3

256


Option: 4

48


Answers (1)

best_answer

Sum of the coefficients of the terms not containing c is 38 and of the term not containing b and c both is 28, so required sum = 38 - 28 =6305

 

Posted by

Nehul

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