Question Detail
Question
Find the sum of the coefficients in the binomial expansion of (x+y)^n
Correct Answer
Option D is the correct answer.
Detailed Explanation
The sum of coefficients in the expansion of (x+y)^n can be found by setting x=1 and y=1: (1+1)^n = 2^n.
Hint
Substitute x=1 and y=1 to find the sum of coefficients.