# How do you minimize and maximize #f(x,y)=sinx*cosy-tanx# constrained to #0<x-y<1#?

##### 1 Answer

Feb 19, 2017

See below.

#### Explanation:

There are infinite relative minima due to the objective function periodicity. The near points to the origin are located at

Attached the feasible region plot with the level chart associated to the objective function.