7. The equation of the ellipse is given as Use implicit differentiation to determine the derivative of the equation of the ellipse given above. (5) B. Determine the slope of the equation in Question 1., above, at (X,, Vo)- (5) 9. Hence or otherwise find the equation of the tangent at (X.= ).). The equation referred to in Question 1, above. (5) 10. Let x' - xy+ y' =3 be the equation of an ellipse. By implicit differentiation determine the equation of the normal of the equation given above at (-1, 1). (5) 11. Given that sin (x+ ))=2x, find the equation of the tangent line at the point (0, IT). (5) 12. Find the equation of the tangent and normal lines to the curve of: Asi y+2xy =2x at the point | 1, (5) 13. Let x* +5y =3x y' . Find " using implicit differentiation. dx (5) 14. For the equation x' + y' -2y=3 Find the equation of the normal line at the point (2, 1)