Question

find the 15th term of the A.P -7,-4,-1....​

Answer 1

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Answer 2

Answer:

35

Step-by-step explanation:

A.P -7,-4,-1....​

Common difference d = -4-(-7) =-1-(-4) =3

$a_1=-7$

Formula of nth term = $a_n=a+(n-1)d$

Substitute n = 15

$a_{15}=-7+(15-1)3$

$a_{15}=-7+(14)3$

$a_{15}=35$

hence the 15th term is 35