Question

If the 3rd and 6th terms of an ap are 7 and 13 respectively find the 10th term

Answer 1

Step-by-step explanation:

Given a3=7, a6=13, a10=?

a3=a+2d=7(1)

a6=a+5d=13 (2)

(2)-(1)

a+5d=13

-a+(-)2d=(-)7

3d=6

d=2.

.α=13-5d

=13-5*2=13-10

=3

a10=a+9d

=3+9*2

=3+18

α10=21.

hope it helps u.

Answer 2

Answer:

answer attached in photo