Teaching AP DSC School Assistant 2025 Mock Test Series Mathematics Parabola, Ellipse and Hyperbola Applications of Conics
Which of the following pair of equations represent the same conic-
1
\(\frac{l}{r} = 1 + e\cos \theta \), \(\frac{l}{r} = 1 - e\cos \theta \)
2
\(\frac{l}{r} = 1 + e\cos \theta \), \(\frac{l}{r} = - 1 + e\cos \theta \)
3
\(\frac{l}{r} = 1 - e\cos \theta \), \(\frac{l}{r} = - 1 - e\cos \theta\)
4
None of these