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