Question

-729=-1.3^n-1 como resolver?

Answer 1

729 = 3.243 = 3.3.81 = 3.3.3.27 = 3.3.3.3.9 = 3.3.3.3.3.3 = 3⁶

- 729 = - 3ⁿ⁻¹

- 3⁶ = - 3 ⁿ⁻¹

6 = n - 1

n = 6 + 1

n = 7