Question

The number of terms in a binomial expansion

is one less than the power
is equal to the power
is one more than the power

Answer 1

It should be one more than the power

Ex(x+y)^3=x^3+3x^2y+3xy^2+y^3
As you can see power of 3 but 4 terms

Answer 2

(C) is one more than the power

Explanation:

Let us consider a binomial expansion:

`(x+y)^2=x^2+2xy+y^2`

The power of the above expansion is
`2` and the number of the terms in the above binomial expansion are
`3`, thus the total number of terms in the binomial expansion is one more than the power.

Hence, Option C is correct.