Find the nth term of the seqence -15,-5,5,15… Question Find the nth term of the seqence -15,-5,5,15… in progress 0 Math Ruby 4 days 2021-10-11T01:45:43+00:00 2021-10-11T01:45:43+00:00 2 Answers 0 views 0

## Answers ( )

Answer10n – 25

Givennth terms of sequence = -15, -5, 5,15…….

SolutionFirst term = a = -15

Common Difference = d =

d = b – a = -5 – (-15) = 10

Nth term of ap = a + ( n-1) d

=> -15 + ( n-1 ) 10

=> -15 + 10n -10

=> 10n – 25 = Answer

10n + 25

Step-by-step explanation:Given:-A.P. :- -15, -5, 5, 15…

To find:-Solution:-First term of AP (a) = -15

Common difference (d) = -5 – (-15)

= 10

We know that,