The interval in which the function f(x)=sin x-cos x -ax +b decreases for all real values of x is given by

The interval in which the function f(x)=sin x+cos x in x in[0,2 pi] is

The value of K in order that f(x)=sin x-cos x-Kx+5 decreases for all positive real value of x is given by

Find the interval in which the function f(x)=sin(log x)-cos(log x) increase

If the function f(x)=3 cos |x| -6 ax +b increases for all x in R then the range of value of a given by

Find the value of a in order that f(x)=sqrt(3)sin x-cos x-2ax+b decreases for all real values of x.

Write the interval in which the function f(x)=cos x is strictly decreasing.

Find the values 'a' for which the function f(x)=(a+2)x^(3)-3ax^(2)+9ax-1 decreases for all real values of x