Question

根号下1-2分之根号3+1-2分之根号3等于多少

Answer 1

√(1-√3/2) + 1-√3/2
= √{(4-2√3)/4} + 1-√3/2
= √{[(√3)^2-2√3+1]/4} + 1-√3/2
= √{(√3-1)^2/4} + 1-√3/2
= (√3-1)/2 + 1-√3/2
= √3/3 -1/2 + 1 - √3/2
= 1/2