IMPLICIT DIFFERENTIATION - MadAsMaths
madasmaths.com › implicit_differentiationQuestion 7 A curve is described by the implicit relationship y xy y x3 + = + −2 4 10 . Find an equation of the normal to the curve at the point where y =1. 3 4 15y x+ = Question 8 A curve has equation 4cos 3 2siny x= − , x∈ , y∈ . Show clearly that 4 2y x− = π is the equation of the tangent to the curve at the point with coordinates ,