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Homework Statement
What is the equation of the line perpendicular to ## x^2-y^2=1 ## at the point ## (2,\sqrt{3}) ##?
Homework Equations
The Attempt at a Solution
I would automatically know what to do if I could use calculus, but apparently you can solve this without it. I would also know what to do if the conic was a circle (i.e. use the difference between the point given and the center of the circle). But how can I solve it in the case of a hyperbola?