2 ^(x+2) *(1/2)^(4-2x)>根号2

问题描述:

2 ^(x+2) *(1/2)^(4-2x)>根号2

2 ^(x+2) *(1/2)^(4-2x)>√2
2^(x+2)*2^(2x-4)>2^1/2
2^(3x-2)>2^1/2
3x-2>1/2
x>5/6