MONOTONICITY

MONOTONIC PREFERENCES, INDIFFERENCE MAP AND MRS

Which of the following functions are NOT monotonous on R^(+)?

f(x)=x^(5)-20x^(3)+240x, then f(x) is O Monotonically decreasing everywhere O Monotonically decreasing on (0,oo) O Monotonically increasing on (-oo,0) O Monotonically increasing everywhere

In the following loweing questions, out of the four alternatives, select the word given Monotonous

Number of values of x lying in (0,(pi)/(2)) at which f(x)=In(sin x) is not monotonic is