Question

What does cos mean,
what is it...

Answer 1

cosine

Answer 2

yeah, but what is a cosine

Answer 3

i seriously dont know

Answer 4

just a basic definition

Answer 5

It is a very close relative of sin. They're like cousins.

Answer 6

functions are also commonly used to model periodic

Answer 7

Consider an angle, and suppose that it is part of a right triangle, and it is *not* the 90 degree angle. Then the cosine is the ratio of the length of the side opposite the angle to the length of the hypotenuse.

Answer 8

ok ok thanks