Trig Reviewww

This week, I'm going to do some review from one of the trigonometry sections. If you do remember any trig, you should be good to go and could probably work my example right now. But incase you don’t remember everything, i'm going to give you some information. all you need to know right now in trig is basic formulas and the trig chart. For starters, you must remember:

• Tan=sin/cos
• Sin=1/csc
• Sec=1/cos
• Cos=1/sec
• Tan=1/cot
• Cot=1/tan
• Csc=1/sin

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.

• 1+tan^2=sec^2
• 1+cot^2=csc^2
• Sin^2+cos^2=1

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!!

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

And there's a trig review!

Carleyy