不等式log2X>log1/2X 不等式2^(x-1) -(1/4)^x =0,x

不等式log2X>log1/2X 不等式2^(x-1) -(1/4)^x =0,x
不等式log2X>log1/2X
不等式2^(x-1) -(1/4)^x =0,x

不等式log2X>log1/2X 不等式2^(x-1) -(1/4)^x =0,x
1.log[1/2]x=-log[2]x,所以原式化为log2[x]>-log[2]x,所以log[2]x>0,所以x>1
2.(1/4)^x=2^(-2x),所以原不等式化为2^(x-1)