What is the relationship between the sin and cos functions?
They are 90 degrees, or pi/2 in radians, shifted away from each other on the x-axis.
Can you give me a link to a graph where I can see these 2 functions?
Certainly! Here's a link to a graph on Desmos where you can see the sine and cosine functions: [https://www.desmos.com/calculator/3ufdcqm8cq](https://www.desmos.com/calculator/3ufdcqm8cq) . You can interact with the graph by zooming in or out, panning, and adjusting the function inputs to see how they change.