TRIG REVIEW

Today we are going to do some review from the trigonometry section. If you do remember Trig, you are good to go and can probably work my examples right now. But incase you don’t remember everything; all you need to know right now in trig is basically formulas as well as the trig chart. For starters, you must remember:

· Sin=1/csc

· Cos=1/sec

· Csc=1/sin

· Sec=1/cos

· Tan=1/cot

· Cot=1/tan

· Tan=sin/cos

Apart from knowing that, you must also know the Pythagorean Identities. To refresh your memories, these are the Identities you will need to use when doing a lot of trigonometry.

· Sin^2+cos^2=1

· 1+tan^2=sec^2

· 1+cot^2=csc^2

Now that we’ve went over some of the basic things needed to work the examples I am about to show you, we can begin J

Example 1: Simplify:

(Sinx^2+Cosx^2)/ Sinx

1. Look for identities. You have one, so simplify it.

2. You now get 1/Sinx. You can simplify this by referring to the notes above.

3. You get Cscx as your final answer J

I hope this review helped!

CARLEYYYYY