The solution set of the system of equations `x+y=(2pi)/3,cosx+cosy=3/2,` where `xa n dy` are real, is ________

The solution set of the system of equations x+y=(2pi)/3,cosx+cosy=3/2, where x and y are real, is ________

The solution set of the system of equations x+y=(2 pi)/(3),cos x+cos y=(3)/(2), where x and y are real,is

The solutions of the system of equations x+y=2pi//3 and cos x + cos y = 3//2 where x and y are real, are

Prove that the system of equations x-y = (2pi)/3 and cosx + cosy =3/2 dos not have any real solution.

The number of all possible ordered pairs (x, y), x, y in R satisfying the system of equations x+y=(2pi)/3, cosx+cosy=3/2 is

The solution set of the equation (2cosx-1)(3+2cosx)=0" in "0lexle2pi is

The solution of the differntial equations cosx sinydx+sinx cosy dy=0 is

The number of solutions of the equation 2x=3pi(1-cosx) is