1/9
9^(-2) = 1 /9^(2) = 1 / 81 = 0.01234567901...... recurring to infinity.
1
Whenever you see a negative exponent (the negative 2nd power), take the reciprocal of the answer (put one over it):x-y = 1/xySo:9-2 = 1/92 = 1/81 = 0.01234567901
9 to the negative 9th power is 2.58117479e-9
5.3965953e-16
-9
9^(-2) = 1 /9^(2) = 1 / 81 = 0.01234567901...... recurring to infinity.
9 to negative 2 = 1/9 to plus 2 = 1/81
1
1 over 3 to the negative 2nd power is 9
1 everything to the power of 0 = 1
1/9
9. Any negative number squared is positive.
It is: 2^-9 = 1/512
9-8 = 1/98 = 1/43046721
1/59049
1/9