Question

Which term of an A.P. 40, 36, 32,...., is -44?​

Answer 1

Step-by-step explanation:

A. P = 40, 36, 32,......, is - 44

a= 40

d= 36 - 40 = - 4

n =?

Formula :-

a+ (n-1)d = Tn

Hence :-

40 + (n-1) - 4 = - 44

40 + (-4n + 4) = - 44

40 - 4n + 4 = - 44

-4n + 44 = - 44

-4n = - 44 - 44

-4n = - 88

n = 22.