Friday

October 31, 2014

October 31, 2014

Posted by **Jon** on Thursday, February 14, 2008 at 6:33pm.

A)-cot theta

B)cot theta

C)tan theta-cot theta

D)tan theta-sec^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 6:48pmThank 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/t-58628.html

3. (Trig, part II of #3): http://www.physicsforums.com/archive/index.php/t-159316.html

4. (Trig with drawing): http://www.answers.com/topic/list-of-trigonometric-identities?cat=technology

- I dont think drawing a picture will help me drwls -
**kain**, Thursday, February 14, 2008 at 8:03pmif you ar having issues read it again or 3 times . you can also try to contact a friend

- I dont think drawing a picture will help me drwls -
- math -
**Jon**, Thursday, February 14, 2008 at 7:15pmtrig 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 dont understand what im looking at it does no good, I know how to read I just dont get it.

- I dont think drawing a picture will help me drwls -
**Count Iblis**, Thursday, February 14, 2008 at 7:49pmNotation: 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 7:58pmI understand that a little thank you sooo much for explaining it.

**Answer this Question**

**Related Questions**

trig - Which expression is equivalent to tan theta - sec theta/sin theta? A)-cot...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

Precalculus check answers help! - 1.) Find an expression equivalent to sec theta...

Math - 1)Find cos theta if sin theta=3/5 and 90 degrees<theta<180 degrees...

Algebra II - Multiple Choice Which expression is NOT equivalent to 1? (theta) ...

trig - If sin theta is equal to 5/13 and theta is an angle in quadrant II find ...

Algebra II - Which of the following expressions are not equal to 1? A) sin^2 ...

Math - There are no typos and no work b/c I don't know how to do them. Thanks. 1...

Precalculus(NEED HELP ASAP PLEASE!!) - cot(theta)= 3 pi < theta < 3pi/2 ...

Trigonometry - I don't understand how I'm supposed set the problem up or what ...