find the sum of coefficient in (x+y) to power 8?

Asked by SHRUTI GUPTA | 19th Oct, 2013, 05:35: PM

Expert Answer:

Sum of the coefficients of (ax+by)n = (a+b)n
Comparing (ax+by)n with (x+y)8, we have:
a = b = 1, n = 8
 
Thus, sum of the coefficients = 28

Answered by  | 20th Oct, 2013, 06:09: PM

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