JEE Main 2019 Mathematics question
Let . If the eccentricity of the hyperbola is greater than 2, then the length of its latus rectum lies in the interval:
Answer: (A)
Solution
e = sec θ > 2 ⇒ θ ∈ (π/3, π/2); LR = increases from 3 to ∞.
Let . If the eccentricity of the hyperbola is greater than 2, then the length of its latus rectum lies in the interval:
e = sec θ > 2 ⇒ θ ∈ (π/3, π/2); LR = increases from 3 to ∞.