e In Problems 1-10 find in two ways: (a) by differ- entiating implicitly and (b) by explicitly solving for y and then differentiating. Then find the value of dy d.x at the given point using your results from both the implicit and the explicit differentiation. 1. x2 + 1/2 = 100, point: (6,8) 2. x2 + 5y2 = 45, point: (5,2) 3. x2 - 3xy + 7y = 5, point: (2, 1)