Grade 10Engineering Entrance ExamsSin2x. + Cos2y is equal to =. If x+y =90° and x=2y: Gourav sharma 9 Years agoGrade 10
Robo9 Years agoYo ...Solve x+y=π/2 and x=2yYou will get x= π/3 and y= π/6 Put them in sin2x + cos2y.Hope this hepls