Question Number 140659 by bemath last updated on 11/May/21
$$\mathrm{Eliminate}\:\theta\:\mathrm{from}\:\mathrm{the}\:\mathrm{equation} \\ $$$$\:\begin{cases}{\frac{\mathrm{x}}{\mathrm{a}}\mathrm{cos}\:\theta−\frac{\mathrm{y}}{\mathrm{b}}\mathrm{sin}\:\theta=\mathrm{cos}\:\mathrm{2}\theta}\\{\frac{\mathrm{x}}{\mathrm{a}}\mathrm{sin}\:\theta+\frac{\mathrm{y}}{\mathrm{b}}\mathrm{cos}\:\theta=\mathrm{2sin}\:\mathrm{2}\theta}\end{cases} \\ $$
Answered by BHOOPENDRA last updated on 11/May/21
Answered by BHOOPENDRA last updated on 11/May/21