Question

which term of A.P 11,8,5,2,.... is -151​

Answer 1

Answer:

a= 11 d=a2-a1 = 8-11 = -3 an = a (n-1)*d = -151 = 11(n-1)*-3 = -151-11= (n-1) *-3 = -162=(n-1) *-3 = (n-1) =-162/-3=54

Answer 2

$t3 - t2 = t2 - t1 \\ 5 - 8 = 8 - 11 \\ - 3 = - 3$

d= ( -3 )

a= 11