log2(根号2/2)·log2(根号2/4)

问题描述:

log2(根号2/2)·log2(根号2/4)
麻烦写下过程

log2 (√2/2)·log2(√2/4)
=(log2 √2-log2 2)(log2 √2-log2 4)
=(1/2-1)(1/2-2)
=(-1/2)(-3/2)
=3/4