Question

已知x=8+4乘以根号3,求根号x-根号(x-1)的值

Answer 1

x=8+4√3

=6+2√12+2

=(√6+√2)²

x-1

=7+4√3

=4+2√12+3

=(2+√3)²

所以原式=√6+√2-2-√3