Question

Which set of coefficients of the terms in the expansion of the binomial (x + y)3 is correct?

A.
1, 3, 3, 1
B.
1, 4, 4, 1
C.
1, 2, 2, 1
D.
1, 5, 5, 1

Answer 1

A.

1, 3, 3, 1

Explanation:

The given binomial is

`{(x + y)}^(3)`

We want to find the set of coefficients of the terms of the expresion.

We use Pascal's Triangle to generate the coefficients up to exponent 3.

As shown in attachment the coefficients are :

1,3,3,1

The correct answer is A