Find the limit LIM (t → x) (Sint / SiNx) ^ [x / (Sint SiNx)], this problem "e ^ ln (Sint / SiNx) ^ [x / (Sint SiNx)]",

Find the limit LIM (t → x) (Sint / SiNx) ^ [x / (Sint SiNx)], this problem "e ^ ln (Sint / SiNx) ^ [x / (Sint SiNx)]",

Isn't e ^ LNY y y? In this way, the exponential type of Y will be resolved into 0 / 0 type of LNY, and we can use Rhoda
Later, I can only understand it by myself, others can't teach it by hand