Question

Is -150 a term of the AP- 11,8,5,2​

Answer 1

Answer:

a= 11

d=3

n=?

an= -150.

an =a+(n-1)d

-150 = 11+ (n-1) 3

-161/-3= (n-1)

161/3 +1/1 = n

161+3/3 = n

164/3 =n

54.6 =n

As n is not an integer -150 cannot be a term of given AP

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