Question

The coefficients corresponding to k = 0, 1, 2, ..., 4 in the expansion of (x + y)^4areOA. 0, 4, 6, 4, 0OB. 1, 4, 6, 4, 1O C. 1, 4, 6, 6, 4, 1OD. 0, 1, 4, 6, 4, 1, 0

Answer 1

The Solution:

Given:

$(x+y)^4$

We are asked to determine the coefficients in the expansion.

Using the Pascal Triangle below:

We have that the required coefficients are: 1 4 6 4 1

Therefore, the correct answer is [ option B ]