Conic Sections Question 75
Question: If the line $ y=mx+c $ touches the ellipse $ \frac{x^{2}}{b^{2}}+\frac{y^{2}}{a^{2}}=1 $ , then $ c= $
[MNR 1975; MP PET 1994, 95, 99]
Options:
A) $ \pm \sqrt{b^{2}m^{2}+a^{2}} $
B) $ \pm \sqrt{a^{2}m^{2}+b^{2}} $
C) $ \pm \sqrt{b^{2}m^{2}-a^{2}} $
D) $ \pm \sqrt{a^{2}m^{2}-b^{2}} $
Show Answer
Answer:
Correct Answer: A
Solution:
Since, here $ a $ and $ b $ are interchanged.
BETA
