Question Number 154992 by ZiYangLee last updated on 24/Sep/21
$$\mathrm{Find}\:\mathrm{the}\:\mathrm{general}\:\mathrm{solution}\:\mathrm{of}\: \\ $$$$\mathrm{cos}\:\mathrm{2}\theta\:+\mathrm{cos}\:\theta\:=\:\mathrm{sin}\:\theta \\ $$
Answered by john_santu last updated on 24/Sep/21
Commented by ZiYangLee last updated on 24/Sep/21
$$\mathrm{nice}\:\mathrm{thanksss}!\:\mathrm{sir} \\ $$