What I know about cos sin and and tan are they are a method of using the known length in right triangle to get one of the unknow angle in that triangle, and it’s a part of the trigonometry.
Math 10 honors Trigonometry
on on on on on on What I know about cos sin and and tan are they are a method of using the known length in right triangle to get one of the unknow angle in that triangle, and it’s a part of the trigonometry.