Question

已知A=根号3分之1,B=根号2分之1,求根号AB(根号B分之A+根号A分之B)

Answer 1

√(ab)[√(a/b)+√(b/a)]
=√a^2+√b^2
=a+b
=1/√3+1/√2
=√3/3+√2/2.