Posted by Jon on Thursday, February 14, 2008 at 6:33pm.
Which expression is equivalent to tan thetasec theta/sin theta?
A)cot theta
B)cot theta
C)tan thetacot theta
D)tan thetasec^2theta
just tell me what I need to know to set it up

I dont think drawing a picture will help me drwls  SraJMcGin, Thursday, February 14, 2008 at 6:48pm
Thank you for using the Jiskha Homework Help Forum. If it's Math, I doubt I can help you, but try these sites:
1. http://mb.sparknotes.com/mb.epl?b=986&m=1268516&p=4&t=358012&w=1
2. (Physics post): http://www.physicsforums.com/archive/index.php/t58628.html
3. (Trig, part II of #3): http://www.physicsforums.com/archive/index.php/t159316.html
4. (Trig with drawing): http://www.answers.com/topic/listoftrigonometricidentities?cat=technology

math  Jon, Thursday, February 14, 2008 at 7:15pm
trig identities are like in a different language for me. can I please get at least 1 step to get started. I looked at all the sites about it but if I don't understand what im looking at it does no good, I know how to read I just don't get it.

I dont think drawing a picture will help me drwls  Count Iblis, Thursday, February 14, 2008 at 7:49pm
Notation: sin(theta) = s; cos(theta) = c.
Then tan(theta) = s/c and
sec(theta) = 1/c
We can write:
s/c  1/(cs) = (s^2  1)/(cs) = c/s = Answer A

I dont think drawing a picture will help me drwls  Jon, Thursday, February 14, 2008 at 7:58pm
I understand that a little thank you sooo much for explaining it.
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