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CBSE Class 11-science Answered

find the sum of coefficient in (x+y) to power 8?
Asked by SHRUTI GUPTA | 19 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 | 20 Oct, 2013, 06:09: PM
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