SP #7: Unit Q Concept 2: Find all trig functions given one trig function and a quadrant

The Picture below will show you a problem as well as how to find all trig functions using IDENTITIES (Reciprocal and/or Ration and/or Pythagorean). 







This problem shows that you can find all trig functions by using the identities that we learned about in Unit Q Concept 1. It shows that it is helpful to know these identities in order to have expanded knowledge that would help us solve problems that could become more difficult. It follows that it is a good practice to get to know the identities of trig functions out of the top of your head.
Please notice that we figure out the quadrant that will be used by checking the answers of the trig functions given, whether they are negative answers or positive answers. Also notice on the right how we figured out the answers of  each trig function, whether they were negative or positive, based on the quadrant that we found out will be used.





And please do not forget to to check out the SECOND WAY to find all the trig functions of this problem. Just click on:


                         Kathy's Awsume Second Way