(根号12-根号½-2根号三分之一)-根号八分之一+根号18的值
=2根号3-(根号2)/2-(2根号3)/3-(根号2)/4+3根号2
=(4根号3)/3+(9根号2)/4
=4*1.732/3+9*1.414/4
=2.309+3.182
≈5.49
(根号12-根号½-2根号三分之一)-根号八分之一+根号18的值
=2根号3-(根号2)/2-(2根号3)/3-(根号2)/4+3根号2
=(4根号3)/3+(9根号2)/4
=4*1.732/3+9*1.414/4
=2.309+3.182
≈5.49