由ab=-2,得,b=-2/a,代入到a^2+3b^2=7,得,a^2+3(-2/a)^2=7,整理,得,a^2+12/a^2=7,设a^2=x,所以x+12/x=7,x^2-7x+12=0,(x-3)(x-4)=0x1=3,x2=4当x=3,a^2=3,a1=√3,a2=-√3当a1=√3,b1=(-2/3)√3当a2=-√3,b2=(2/3)√3当x...