What is the graph of #3x^2−2sqrt3xy+y^2+2x+2sqrt3y=0#, given #cot2θ=(A−C)/B#?
1 Answer
May 6, 2015
The presense of a cross product term (
In this question:
Therefore,
In order to do the rotation substitution, we'll need
Use
If you have not learned to use the discriminant, you'll need to rotate the axes to see that the graph is a parabola.
Using the discriminant, we see