Question

Using sine and cosine, it's possible to describe any (x,y) point as an alternative, (r,θ) point, where r is the length of a segment from (0,0) to the point and θ is the angle between that segment and the x-axis. This is called the polar coordinate system, and the conversion rule is (x,y) = (rcos(θ),rsin(θ )).
but what are sin and cos

Answer 1

Answer:

http://setosa.io/ev/sine-and-cosine/

Step-by-step explanation:

not by me that will help u in your problems is a expample

Answer 2

Hello! :)

Sine, Cosine and Tangent are the main functions used in Trigonometry and are based on a Right-Angled Triangle. Before getting stuck into the functions, it helps to give a name to each side of a right triangle: "Opposite" is opposite to the angle θ "Adjacent" is adjacent (next to) to the angle θ.

This might help you: (:

I hope I helped and answered in time!

Good luck!

~ Destiny ^_^