1. The problem statement, all variables and given/known data find the lines that are (a)tangent and (b)normal to the curve at the given point: x2 - √(3)xy + 2y2 = 5, (√3, 2) 2. Relevant equations dy/dx 3. The attempt at a solution i am completely confused about implicit differentiation and the chain rule. ive learned about 3 ways to do the chain rule and apparently they are all the same thing which confuses me more. x2 - √(3)xy + 2y2 = 5 2y2(d/dx) = 5(d/dx) + √(3)xy(d/dx) - x2(d/dx) 4(dx/dy) = 0 + (1/2)3-1/2y' - 2x (dy/dy) = (((1/2)3-1/2y' - 2x) / 4 and i am stuck.