# Is #f(x)=e^-xcos(-x)-sinx/(pi-e^x)# increasing or decreasing at #x=pi/6#?

##### 1 Answer

Jul 27, 2018

#### Explanation:

Given function:

Differentiating above function w.r.t.

Setting

Since

Jul 27, 2018

Given function:

Differentiating above function w.r.t.

Setting

Since