Question

Check whether -150 is a term of the ap 17 ,12,7,2...

Answer 1

We have,

an= -150

a=17

d= -5

an=a+(n-1)d

-150=17+(n-1)-5

-167=-5n+5

-172=-5n

5n=172

n=34.4

So, (-150) is not a term of given A.P.

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