Question

the number of terms in the expansion of (1+x)21 is
​

Answer 1

Answer:

binomial

Step-by-step explanation:

as a term can be divided by the sigh of multiplication or division

Answer 2

Answer

22

Step-by-step explanation:

=(1+x) 21

The number of terms in the expansion is one more than n i.e., n+1

So, here n=21

The number of terms in the expansion (1+x)

21

=21+1=22.