Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) The length of latus rectum of the parabola whose focus is`(u^2/(2g)sin2alpha,-u^2/(2g)cos2alpha)`and directrix is `y=u^2/2g` is - Sarthaks eConnect
search
Ask Question

Welcome to Sarthaks eConnect Question Bank

Practice Online Test Series for JEE Main 2018 & NEET 2018

The length of latus rectum of the parabola whose focus is`(u^2/(2g)sin2alpha,-u^2/(2g)cos2alpha)`and directrix is `y=u^2/2g` is

A.

`u^2/gcos^2alpha`

B.

`u^2/gcos2alpha`

C.

`(2u^2)/gcosalpha`

D.

`(2u^2)/gcos^2alpha`