[" (7) Separate the interval "[0,pi/2]" into sub-intervals in which "f(x)=sin^(4)],[x+cos^(4)x" is increasing or decreasing."]

Sparate the interval [0, pi/2] into sub-intervals in which f(x)=sin^(4) x+cos^(4) x is increasing

Sparate the interval [0, pi/2] into sub-intervals in which f(x)=sin^(4) x+cos^(4) x is decreasing

Separate the interval [0,\ pi//2] into sub-intervals in which f(x)=sin^4x+cos^4x is increasing or decreasing.

Separate the interval [0,pi/2] into sub intervals in which function f(x)=sin^4(x)+cos^4(x) is strictly increasing or decreasing.

Find the intervals in which f(x)=x^(4)-4x^(3)+4x^(2)+15 is increasing or decreasing.

Separate the interval [0,(pi)/(2)] into sub intervals in which function f(x)=sin^(4)(x)+cos^(4)(x) is strictly increasing or decreasing.

Find the in intervals in which f(x)=sin^(4)x+cos^(4)x is increasing or decreasing x in (0, (pi)/(2)) .

Find the intervals in which f(x)=sin3x cos3x,0

Find the intervals in which f(x)=x^4-4x^3+4x^2+15 is increasing or decreasing.

Find the intervals in which f(x)=s in x(1+cosx), 0