Question

If (1/9)^n=81, the value of n is:​

Answer 1

here is ur ans......(-2)

Answer 2

Hii friend,

I think ....the value of n is (-2)

Solution :

(1/9)^n = 9^2

=> (9)^2 × (9)^n = 1

=> (9)^(2+n) = 9^0

=> 2+n = 0

=> n = (-2).....(Ans)