The function `f(x) = (lambda sin x + 6 cos x)/(2 sin x + 3 cos x)` monotonically increasing if

Function f(x) = (lambda sin x + 6 sin x)/(2 sin x + 3 cos x) is monotonic increasing if

The function f(x)= (lamda sin x + 6 cos x )/(2 sin x + 3 cos x) is monotonic increasing when-

If f(x)= kx-sin x is monotonically increasing then

If the function f(x) = (K sin x + 2 cos x)/(sin x + cos x) is strictly increasing for all values of x, then

The function f(x) = sin x + cos x will be

The function f(x)=(a sin x+b cos x)/(c sin x+d cos x) is decreasing,if

Function f(x) = sin x – cos x is monotonic increasing when -

The function f(x) = sin^(4)x + cos^(4) x increases if