Question

2-根号3的平方根是多少

Answer 1

2-根号3
=(4-2根号3)/2
=[(根号3)^2+1-2根号3]/2
=(根号3-1)^2/2
=[根号3/根号2-1/根号2]^2
=[(根号6-根号2)/2]^2
平方根是:±(根号6-根号2)/2