开方 6-3倍根号3

问题描述:

开方 6-3倍根号3

答:
√(6-3√3)
=√3*√(2-√3)
=√3*√[(4-2√3)/2]
=√3*√[(3-2√3+1)/2]
=√3*(√3-1)/√2
=(3-√3)/√2
=(3√2-√6)/2