Why is cos always positive?
I'm confused about why the cosine function always gives positive values. I understand that cosine represents the adjacent over hypotenuse in a right triangle, but how does this ensure that the result is always positive?
How to get the cotangent?
Excuse me, could you please elaborate on how one might go about obtaining the cotangent of an angle in a mathematical or trigonometric context? I understand that the cotangent is a trigonometric function, but I'm curious about the specific steps or formulas involved in calculating it. Is there a straightforward way to derive the cotangent from other trigonometric functions, such as sine or cosine? Additionally, are there any real-world applications where the cotangent function plays a significant role? I'd appreciate any insights or guidance you could provide on this topic.