lim x->1 (3x-3)sin(x^2+x-2)/tan^2 (2x-2) =.... ?

limit ttirgonometri

lim(x->1)  (3x-3) . sin (x²+x-2)/ tan² 2(x-1)
lim(x->1)  3(x-1). sin ((x-1)(x+2))/ tan² 2(x-1)
lim(x->1) 3(x-1)/ tan 2(x-1) . sin{(x-1)(x+2) / tan 2(x-1)
lim(x->1)  3/2 . (x+2)/2
3/2. 3/2
= 9/4