- #1
shocklightnin
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Homework Statement
use implicit differentiation to find an equation of the tangent line to the curve a the given point.
y^2(y^2-4) = x^2(x^2-5)
at (0,-2)
Homework Equations
y^2(y^2-4) = x^2(x^2-5)
The Attempt at a Solution
I got dy/dx to be (3x^2-10x)/(4y^3-8y)
but the answer book says otherwise:
(4x^3-10x)/(4y^3-8y)
while it works out with the point since 0/anything = 0 (which is the answer of what the slope it at that point) i ended up getting the wrong formula in the first place - how is one to do this question then?