根号二/2=2^a怎么算
问题描述：
根号二/2=2^a怎么算
答
2^a=2^(1/2)/2
=2^(1/2-1)
=2^(-1/2)
a=-1/2
根号二/2=2^a怎么算
2^a=2^(1/2)/2
=2^(1/2-1)
=2^(-1/2)
a=-1/2