mohon bantuannya.........

Bilangan eksponen

1. (2² /3)² = (2⁴)/(3²) = 16/9

2. soal buram
(x⁻¹ +y⁻¹)⁻¹ = (1/x + 1/y)⁻¹ = {(x+y)/(xy)}⁻¹ = (x y)/(x + y)

3 soal buram