We have two angles, α and β. we know that -90°< α< β< 90° and that sen(180°+β)> 0. which expression is positive? a)sen α + sen β b)cos α - cos β c)cos α - tan β d) - cos β - tan β can someone show the solution step by step?

the answer is c hope it

step-by-step explanation:

in mathematics, a constraint is a condition of an optimization problem that the solution must satisfy. there are several types of constraints—primarily equality constraints, inequality constraints, and integer constraints. the set of candidate solutions that satisfy all constraints is called the feasible set.

hoped i'm right lol

b

step-by-step explanation:

it is 10.6 according to my calculations