Mohon bantuan no 12. Makasih

Limit 0/0

limit(x->1) (x³-1)/(x-1) + cos {π/2 -(x-1)}/(x-1)
limit (x->1) { (x-1)(x²+x+1)/(x-1) + limit (x->1) sin (x-1)}/(x-1)
limit (x->1) ( x²+x+1) + limit (x-> 1)  sin (x-1)/(x-1)
x = 1
= (x²+x+1)  + 1
= (1+1+1) + 1
= 4

Jawaban A. 1 (maaf kalau salah)