Question

find ' n' of the with terms of the following A P .2,4,7,10,.......​

Answer 1

To find nth term =an=a+(n-1)×d.

a=2

d=3.

an=2+(n-1)×3.

2n-2×3.

2n-6

6=2n.

n=3.

value of n is 3