1. To verify a trig function means to make sure that the two equations are equal to each other. You are unable to touch both sides at the same time so you have to use one side and from that, use identities to get the exact answer as it is on the other side of the equal sign.
2. I have found that remembering and at least knowing the unit circle is a big help because it can be used not only to check answers on one of the concepts, but it is very useful when finding degrees because there are many right triangles referenced in unit Q. Also, to remember which equation have sin and cos first because those are the most vital identities to being successful in this unit.
3. When looking at an identity, whether I need to verify or simplify, I look to see if all the trig functions have seomthing in common. Then I try to use reciprocal and ratio identities if there is nothing squared in the equation. However, if there is something squared in the equation, I reference the Pythagorean Identities to check if anything can be substituted. I often look for the least common denominator, taking out GCF, and factoring. Also, reciprocal and conjugates are my best friend in this unit!
Lastly, as a side note, I would like to mention that the easiest and best way to pass this unit is to simply become familiar with the identities. How you ask? CONSTANT PRACTICING! Becoming familiar with the identities with equations is one of the best ways to master it. And do what feels right. Do not think too hard about the problem. If you do think to hard and find it too difficult, you need to relax and take a breather. This unit is easy. It just takes some time to process all the information.
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