Question

计算(根号3-1)平方-(根号2-根号3)(根号2+根号3)

Answer 1

(根号3-1)平方-(根号2-根号3)(根号2+根号3)

=(√3-1)^2-(√2-√3)(√2+√3)

=(3-2√3+1)-[(√2)^2-(√3)^2]

=4-2√3-(2-3)

=4-2√3+1

=5-2√3