Question

Find tfoe and A.P t, - 3,
and d=5.​

Answer 1

Step-by-step explanation:

We know that the formula for the nth term is t

n

=a+(n−1)d, where a is the first term, d is the common difference.

It is given that the nth term is t

15

=55 and the first term is a=13, therefore,

t

n

=a+(n−1)d

⇒55=13+(15−1)d

⇒55=13+14d

⇒14d=55−13

⇒14d=42

⇒d=

14

42

=3

Hence, d=3