Question

$\frac{ 3^{-4} }{ 3^{-7} } =$

Answer 1

1/3⁴= 3 la puterea -4; 1/3 la puterea 7 = 3 la puterea -7; 1/3⁴/1/3 la a 7= 1/3⁴*3 la a 7= 3 la a 7 /3⁴= 3³