9 to the power of -2\3 help
0.00411522634
9^(-2/3) =
(1 / 9)^(2/3) =
[(1 / 9)^2 ] ^(1 / 3) =
(1 / 81) ^(1/3) =
( [1/27] * [1 /3] )^(1/3) =
(1 / 27)^(1 / 3) * (1 / 3)^(1 / 3) =
1 / [ ∛27 * ∛3 ] =
1 / [ 3 ∛3 ]
