Question

in an A.P first term is 2 and common difference is 3. Find S22
​

Answer 1

Answer:

S22=737

Explanation:

a=2

d=3

n=22

Sn=n/2[2a+(n-1)d]

S22=22/2[2×2+(22-1)3]

=11[4+(21)3]

=11[4+63]

=11[64]

=737