निम्न फलनों के लेखाचित्र खींचिए -
`y=3cos(2x+1)`

Sketch the following graph: y=3cos(2x-1)

y=(1)/(3(1+sin x)-cos^(2)x)

If sin ^ (- 1) x + sin ^ (- 1) y = (2 pi) / (3), then cos ^ (- 1) x + cos ^ (- 1) y =

If cos x + cos y - cos (x + y ) =3/2, the

y = tan ^ (- 1) ((1) / (cos ^ (2) x + cos x + 1)) + tan ^ (- 1) ((1) / (cos ^ (2) x + 3cos x + 3)) upto n terms then y '(0) =

If cos x+ cos y = 1//3 , sin x + sin y=1//4 " then " cos (x+y)=

Consider the system of equations x cos ^(3) y + 3 x cosy sin^(2) y = 14 t o (1) and x sin^(3) y + 3 x cos^(2) y sin y = 13 to (2) The value of sin^(2) y + 2 cos^(2) y is

Solve the following system of equations. sin x + cos y=1, cos 2x-cos 2y=1