The minimum value of `f(x)=sin^4x+cos^4x`,`0lexlepi/2` is

The minimum value of f(x)-sin^(4)x+cos^(4)x,0lexle(pi)/(2) is

The minimum value of f(x)-sin^(4)x+cos^(4)x,0lexle(pi)/(2) is

The minimum value of sin 4x+ cos 4 x is

The minimum vallue of f(x) = sin^(4)x + cos^(4)x, 0 le x le pi/2 is

Find the maximum and minimum values. f(x) = sin^4 x + cos^4x, 0 le x le pi/2

Find local maximum and minimum value of f(x)=sin^(4)x + cos^(4)x, x in[0, (pi)/(2)] .

Find the points of local maxima and local minima, if any, of the following functions. Find also the local maximm and local minimum values: f(x) = sin^4x +cos^4x,0 < x < pi/2

The minimum value of 3 sin^2x + 4 cos^(2) x is

The minimum value of (7)/(4sin x+3cos x+2) is