The minimum value of `cosx+cosy+cos(x+y)` is

The minimum value of cos(cosx) is

The minimum value of |sinx+cosx+(cosx+sinx)/(cos^(4)x-sin^(4)x)| is

The minimum value of |sinx+cosx+(cosx+sinx)/(cos^(4)x-sin^(4)x)| is

The minimum value of |sinx+cosx+(cosx+sinx)/(cos^(4)x-sin^(4)x)| is

Write the maximum and minimum values of cos(cosx)

If cosx+cosy-cos(x+y)=(3)/(2) then

Find the maximum and minimum value of y = asin^2x + b sinx.cosx + c cos^2x

Assertion (A) : The equation Sin^(2)x+Cos^(2)y=2Sec^(2)z is only solvable sinx=1 cosy, 1 and secz=1 where x, y, z in R Reason (R) : Maximum value of Sin x and Cosy is 1 and minimum value of sec z is 1