Max Lift-Drag ratio derivation

Ex 3 pg 16 of EGM90 lecture notes

[@nhatvule6705]

so L/D max does not depend on velocity and altitude at all?

[@muhamadasyraf4123]

can you show how to derive (cl^3/cd^2)max?

[@christopherselsor6302]

your math here is way wrong my guy you firstly wrote the equation wrong at the top just a heads up for people that are sitting here wondering why they aren't following

[@christopherselsor6302]

nvm i saw you remade the video im sorry