/sci/ - Science & Math

>>1764619
Yes!

OP, I just browsed through the comments and noticed that you don't yet know what sine or cosine MEAN. At least one poster said that you should learn these before messing with calculus, and that's extremely true. Pre-Calculus deals a lot with those trig functions and their relationships. Physics uses them a lot. Physics uses calculus a lot. In short, you don't learn these, you're not going far.

Sine and cosine are functions of angles. Imagine a circle of radius 1 centered on the origin of an x/y plane. This is called the unit circle. We will draw angles through it. The vertexes of the angles are at the origin, and the base of any angle is along the positive x axis. The angles open counter-clockwise.

Wherever the angle lands on the circle, examine the point there. Its x coordinate is cosine, and its y coordinate is sine. Therefore, the sine of 90 degrees is 1, and the cosine of 90 degrees is 0. The cosine of 180 degrees is -1. No sine or cosine values will be above 1 or below -1.

Pic related.