m/√（3+m²）=√2/4m右侧m我认为在分母了左右平方m²/(3+m²)=1/(2m²)2m^4=m²+32m^4-m²-3=0(2m²-3)(m²+1)=0∴m²=3/2m=±√6/2如果您认可我的回答,请及时点击右下角的【...