$ y = 2 $ sec $ x - $ csc $ x $
he had squares. The one name right here. So we're gonna take d already ex to seek it. Thanks. Minus D over a d x of co seek it. We're gonna use trick rules. So seeking becomes seeking times 10 Gin and CO. Siegen becomes negative co seek it. Tex Times Co Tangent of X So we got to seek it Times Tangent plus Coast seeking co tension.