Question

已知X=根号3+1,求根号下1+2X+X方分之X方的值 和结果

Answer 1

原式=√[x²/(x+1)²]

=|x/(x+1)|

=|(√3+1)/(√3+2)|

=(√3+1))(√3-2)/(3-4)

=-(3-2√3+√3-2)

=-1+√3