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## Verifying Identities (Trig.) I really need this help, please.

This is a discussion on Verifying Identities (Trig.) I really need this help, please. within the General Off Topic+ forums, part of the QJ.net Forum Miscellaneous category; New Question Post #10....

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1. ## Parabola Focal Chords

New Question Post #10.

2. csc x = 1/sin x

3. I know the core identities, I just don't know how to use them to solve those problems.

4. 16 is really easy. I don't particularly want to touch the other ones. (I really hate trig identities...so much freaking memorization)

5. think you could help me out with it?

6. Just remember the basic identities...there's not much more to it than that. There are three in particular in that problem.

I didn't really say much else in my previous post because I didn't think I could give a hint or push in the right direction without outright saying how to do it :/

7. I got the 3 identities:
sin(x)^2+cos(x)^2=1
1+tan(x)^2=sec(x)^2
cot(x)^2+1=csc(x)

I just can't figure it out, tell me if I'm the right track though,
1/sec(x)^2+1/csc(x)^2=sin(x)^2+cos(x)^ 2
?
That's where I get stuck, after that, I have no idea what to do.
-= Double Post =-
...well guess I'm skipping school tomorrow.

8. <_<
>_>
sin(x)^2+cos(x)^2=1. That's one of the identities I mentioned.

9. (Tr)-ig^id(ent)it-ies = (sh)*t

Perfect equation.

10. Here's another one for you guys, but it's a lot easier. Okay so the focal chord of a parabola passes through the Focus right? Also say the Focal Chord length is 8 units long, would that be 4 units on each side of the Focus? So if the Focal Chord length is 1 unit, it would be .5 units on each side of the Focus? Is that right?

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