Angle

PiDeltaPhi · **Posted:** Sun, 1 Jun 2003 12:30:44 UTC

Find the angle between the tangent lines to the ellipse $\frac{x^2}{9}+\frac{y^2}{4}-1=0$ and the hyperbola $\frac{x^2}{4}-y^2-1=0$ in their point of intersection,which has positive coordinates.

bugzpodder · **Joined:** Sun, 4 May 2003 16:04:19 UTC **Posts:** 2906

first thing is to find the intersection. then you can either use calculus or the standard way to find tangents to get equation of the tagents at that point. proceed to find slope and use arctan on the slope, finally take the difference.

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Angle

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