Answers

2014-03-03T13:57:35+05:30
It can be written as   \frac{ 4^{3} }{ 3^{2} }   now it can be easily evaluated
 \frac{64}{9}
0
2014-03-03T19:50:44+05:30
When you take denominator value to numerator the power value becomes plus and same for numerator.

Therefore, 3^-2/4^-3 = 4^3/3^2 = 64/9
0