Pre-Calculus 1/25

What we learned today was how to find trig values that go around the unit circle more than once.




I realized that 9 pi over 4 wasn't on the unit circle. So, you have to subtract 2 pi from 9 pi over 4 because that how much it is to round the circle one time.




You have to get a least common denominator. Then subtract and find the value on the unit circle.

Here is another example:








Here are the equations we learned in class to help find the negative radians on the unit circle.







Here are some examples:













Ben's Beliefs:
1. know that 2 pi is once around the unit circle
2. you may have to go more than once around the unit circle to find your answer
3. knowing the unit circle will help in the long run....
4. "And in the end, the love you take is equal to the love you make" - The Beatles

you can find the rest of the notes on my dad's web page here