A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
thanks
anonymous
 one year ago
thanks

This Question is Closed

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1sin^2 = 1 cos ^2 ok? replace and let the terms all in left hand side , the right hand side =0. Show me that step, please

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1Do you know how to solve quadratic ?

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1But we have no way to find out the solution without quadratic. How can I help??

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1@cutegirl I shouldn't give you a free answer because it doesn't help you on long run.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.13cos a +3 = 1  cos^2 a cos^2a +3cosa +2=0 (cos a+2) (cos a +1) =0 cos a +2 never =0 , because it is out of range hence , just cos a +1 =0 , then cos a =1, hence a = pi + 2kpi.

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1yup. if limit is given, like from 0 to 2pi, then the answer is a =pi if you don't have any limit, then a = pi +2kpi

Loser66
 one year ago
Best ResponseYou've already chosen the best response.1I don't know, you must look at your problem (the paper) , it is not up to me.
Ask your own question
Sign UpFind 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.