f4..maths

4^3X=8
2^6X=2^3
....6X=3
......X=0.5

2007-02-21 23:45:24 補充：
...4^3X=83Xlog4=log86Xlog2=3log2.......6X=3.........X=0.5

4^3X = 8

2^6X = 2^3

6X = 3

X = 0.5

4^3X = 8
2^6X=2^3
6X=3
X=1/2