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Sum of coefficients of integral powers of x in binomial expansion of [1-2x 0.5 ] 50 is

Sum of coefficients of integral powers of x in binomial expansion of [1-2x0.5]50 is

Grade:12

2 Answers

Deepak Kumar Shringi
askIITians Faculty 4404 Points
6 years ago
venkat
105 Points
6 years ago
In the question sum of cefficients of integral powers of x implies that sum of the even cefiicients
If f(x)= (1-2x)50
Sum of the even coefficients =[f(1)+f(-1)]/2                          
Using the above formula we can get the answer

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