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

Asked by SHRUTI GUPTA 19th October 2013, 5:35 PM
Answered by 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 Expert 20th October 2013, 6:09 PM
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