A focal chord of the parabola y2 = 8x in inclined to x-axis... | Mathematics | SolveeIt | Solveeit

Today, August 18

Question

A focal chord of the parabola y2 = 8x in inclined to x-axis at an angle tan-13. Then its length is equal to:

A

$\frac{80}{3}$

B

$\frac{80}{9}$

C

$\frac{40}{3}$

D

$\frac{40}{9}$

Answer

$\frac{80}{9}$

Explanation

Solution

The correct option is (B): $\frac{80}{9}$