Question

which term of the a.p -3;1;5;9...is 65​

Answer 1

Correct option is A)

Common difference d=a

2

−a

1

=−1−3

=−4

Comparing −b=−4

⇒b=4

Answer 2

Answer:

n = 18

a+(n-1)d = 65

-3 + (n -1)4 = 65

-3 +4n -4 = 65

4n - 7 = 65

4n = 72

n = 18

hope it'll help you.