# Is #f(x)= cos(3x-pi/6)+2sin(4x-(3pi)/4) # increasing or decreasing at #x=pi/12 #?

##### 1 Answer

Jun 10, 2018

Decreasing at

#### Explanation:

For

Sub the

Therefore, the graph is decreasing at

graph{cos(3x-pi/6)+2sin(4x-(3pi)/4) [-10, 10, -5, 5]}

From the graph, you can see that at