Isikan caranya trmksh

1.(1/2)^-3
(2^-1)^-3
2^-1 x -3
2^3
8

2.((-7)³)²)
-7^3×2
-7^6
117649

3.1/√6
1/√6 x √6/√6
√6/6
1/6 √6

4.8/(√5+3)
8/(√5+3) x (√5-3)/(√5-3)
(8(√5-3))/((√5+3)(√5-3))
(8√5-24)/(5-9)
(8√5-24)/(-4)
-2√5 +6