下列计算结果正确的是（接下）

1: 2^|log2(0.3)|-1=5/3
log2(0.3)<0
所以=2^-log2(0.3)-1
=2^log2(1/0.3)-1
=1/0.3-1
=7/3
错

2: (根号下10）^(2-lg25/16)=25/2
左边=(10^1/2)^(2-lg25/16)
=10^[1-lg√(25/16)]
=10^(1-lg5/4)
=10÷10^lg(5/4)
=10÷(5/4)
=8
错

3: log((√2)-1)[3+2√2]=-2
3+2√2=（√2+1)^2=[1/(√2-1)]^2=(√2-1)^(-2)
正确