The set of value(s) of `k` for which `f(x)=sin x-cos x-kx` is decreasing for all values of `x` ,is

Find the set of values of 'b' for which f(x)=b(x+cos x)+4 is decreasing on R

Write the set of values of k for which f(x)=kx-sin x is increasing on R .

Let f(x) be a function such that f '(x)= log _(1//3) (log _(3) (sin x+ a)). The complete set of values of 'a' for which f (x) is strictly decreasing for all real values of x is:

f(x) = sin x - kx is decreasing for all x in R , when

The exhaustive set of values of x for which f(x)=ln(x^(2)-2x-3) is decreasing is

The set of values of k for which kx^(2)-x-k+1<0AA x in R, is

The exhaustive set of values of x for which f(x)= ln(x^(2)-2x-3) is decreasing is

The exhaustive set of values of x for which f(x)= ln(x^(2)-2x-3) is decreasing 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