2. Implicit differentiation. (i) Determine the equation Of the tangent to the curve = + sin(xy) at the point (:r, y) = x/f) (ii) Determine Of the following: 2x y 3 (b) y = arctan(r) 3. Use L'Hospital's Rule to determine the following limits. (i) lim In(sec(:r)) (ii) lim (iii) lim 1. Determine the derivatives Of the following functions: In 5 (ii) (iii) = logs