Coordinate Geometry
Integer Answer
MMTS_Full_Test_16
Grade 12
Question:
The eccentricity of conic $\sqrt{(x-1)^2+y^2}+\sqrt{(x+1)^2+y^2}=4$ is
Step-by-Step Solution
Key Concept: This is an ellipse with foci at $(-1,0)$ and $(1,0)$; $2a=4$
$e=1/2$. $24e=12$.
Correct Answer: 12