A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 one year ago
PreCalc & Trig, picture below, please show your work..
Really frustrated with this homework. :/
 one year ago
PreCalc & Trig, picture below, please show your work.. Really frustrated with this homework. :/

This Question is Closed

ghass1978
 one year ago
Best ResponseYou've already chosen the best response.0use sinx=2sin(x/2)cos(x/2) then factorize

Atkinsoha
 one year ago
Best ResponseYou've already chosen the best response.0Maybe I should tell you this: I haven't been in class for over a week. I don't know any of this stuff.. so be as simple and thorough as you can, thanks.

getusel
 one year ago
Best ResponseYou've already chosen the best response.1\[\cos(\frac{ x }{ 2 })sinx=0\] use the identity sin2x=2sinxcosx \[\cos(x/2)2\sin(x/2)\cos(x/2)=0\] \[\cos(x/2)(1\sin(x/2))=0\] cos(x/2)=0 or 1sin(x/2)=0 \[\cos(x/2)=0 => x/2=\pi/2 \] \[x=\pi\] \[1\sin(\frac{ x }{ 2 })=0\]

getusel
 one year ago
Best ResponseYou've already chosen the best response.1\[\sin(\frac{ x }{ 2 })=1 => \frac{ x }{ 2 }=\pi/2\] \[x=\pi\]

getusel
 one year ago
Best ResponseYou've already chosen the best response.1the solution is \[\pi\]
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
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.