For the function f (x) = -6x -I- 3 sin(x), find all critical numbers in the grap
ID: 2836641 • Letter: F
Question
For the function f (x) = -6x -I- 3 sin(x), find all critical numbers in the graph of ) (enter x values as a comma-separated list, or none if there are no critical numbers): Find all open intervals where the function is increasing. f is increasing on (Give your answer as an interval or a list of intervals, e.g., (-infinity,8) or (1,5), (7,10) . Enter none if there are no such intervals.) Similarly, find all open intervals where the function is decreasing: f is decreasing on (Give your answer as an interval or a list of intervals, e.g., (-infinity,8) or (1,5), (7,10) . Enter none if there are no such intervals.)Explanation / Answer
df=-6+3cosx
always less than zero so always decreasing,there is no critical point.
none
none
(-infnity,infnity)