Question

The sum of n terms of an AP is 2n?. Find the 10th term.​

Answer 1

Step-by-step explanation:

Sn=2n

n/2(2a+(n-1)d)=2n

n(2a+(n-1)d)=4n

2a+(n-1)d=4

2a+(10-1)d=4

2a+9d=4

9d=4-2a

a10=a+(10-1)d=a+9d

=a+4-2a

=4-a