Help ! Nomor 3 Limit x=1 (x^2+x-2) sin (x-1)/ x^2-2x+1

lim (x-->1) [x² + x - 2) sin (x - 1) / (x² - 2x + 1)
= lim (x-->1) (x + 2)(x - 1) sin (x - 1) / (x - 1)²
= lim (x-->1) (x + 2)
= 1 + 2
= 3