RSM SUCKS IF TWO BRAINLESS KIDS WERE SENT THERE AND THEY DID 99 PROBLEMS AGAINST THERE WILL HOW MANY PAGES WOULD IT BE IF THEY DID ZERO PROBLEMS?? (tryna to get u guys points and giving a warning that rsm sucks)

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Ineed to know the answer to this algebra question.

On traditional maps, earth is represented in a flat plane, or by euclidean geometry. however, a globe is a more accurate model that comes from elliptical geometry. how does a globe represent the fact that there are no parallel lines in elliptical geometry? the equator is not parallel to any other latitudinal lines. the north and south poles are never connected by a geodesic. the geodesics connecting the north and south poles never intersect. the geodesics connecting the north and south poles intersect at both of the poles.