Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

zordoloom Group TitleBest ResponseYou've already chosen the best response.0
That would be true. It' an identity.
 2 years ago

checkoutmymath Group TitleBest ResponseYou've already chosen the best response.0
It's not an identity. Does tan^2x = 1(cos2x/1)? I'm certain it doesn't. It does, however, equal to (1cos2x)/2. This is an example of a halfangle identity.
 2 years ago

Jnlucero Group TitleBest ResponseYou've already chosen the best response.0
\[\frac{ 1\cos 2x }{ 1+\cos 2x }=\frac{ 1(12\sin^2x) }{ 1+(2\cos^2x1) }=\frac{ 2\sin^2x }{2\cos^2x }=\tan^2x\]
 2 years ago

Jnlucero Group TitleBest ResponseYou've already chosen the best response.0
so its true.
 2 years ago

Jnlucero Group TitleBest ResponseYou've already chosen the best response.0
something wrong?
 2 years ago

Spectrum Group TitleBest ResponseYou've already chosen the best response.0
you guys are confusting me 0.o true or no?
 2 years ago

Jnlucero Group TitleBest ResponseYou've already chosen the best response.0
the first i did was to use the double angle formula for sine and cosine. then it was simplified, then since the ratio of sine and cosine is tangent, then the next step is obvious.
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.