Question

check whether-150 is a term of the AP : 11,8,5,2.....​

Answer 1

Step-by-step explanation:

11,8,5,2...... .is an A.P.

a=11,d= -3,Tn=-151

Tn=a+(n-1)d

-151=11+(n-1)-3

-151-11=(n-1)-3

-162=n-1×-3

n-1=162/-3

n-1=54

n=54+1

n=55

Hence,the term -151is the 55th term of this A.P.