Find Lim e ^ (1 / x ^ 2) * arctan ((x ^ 2 + 2-1) / (x + 1) * (X-2)) when x approaches 0, - 1,2

Find Lim e ^ (1 / x ^ 2) * arctan ((x ^ 2 + 2-1) / (x + 1) * (X-2)) when x approaches 0, - 1,2

Is there a mistake there, missing an X