hey, I was just wondering when i would use sine law, opposed to cosine law and vice-versa.
Thanks!
You don't mean Law of Sines and Law of Cosines, right?
If you mean the law of sine, that is:
And the law of cosine:
Then you can use use either of them when you have a right triangle.
Which one depends on what you know, be it the opposite side, adjacent side, or the hypotenuse.