I dont think drawing a picture will help me drwls
posted by Jon on .
Which expression is equivalent to tan theta-sec theta/sin theta?
C)tan theta-cot theta
just tell me what I need to know to set it up
Thank you for using the Jiskha Homework Help Forum. If it's Math, I doubt I can help you, but try these sites:
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
if you ar having issues read it again or 3 times . you can also try to contact a friend
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.
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 understand that a little thank you sooo much for explaining it.