∵（2+根号3）^＾m=1
∴m=0
m²-1/m+1-m²-m/根号m²-2m+1
=(m-1)(m+1)/(m+1)-m(m-1)/(m-1)²
=m-1-[m/(m-1)]
=0-1-0/(0-1)
=-1