Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
sabika13
Group Title
Given that sin pie/6 = 1/2, use an equivalent trigonometric expression to show that cos= 1/2. I have no clue how to do this, can someone help me?
 2 years ago
 2 years ago
sabika13 Group Title
Given that sin pie/6 = 1/2, use an equivalent trigonometric expression to show that cos= 1/2. I have no clue how to do this, can someone help me?
 2 years ago
 2 years ago

This Question is Closed

LoveUu Group TitleBest ResponseYou've already chosen the best response.1
sin 30*=1/2 cos60*=1/2 u can see trignometric table for this and all for all values also
 2 years ago

sabika13 Group TitleBest ResponseYou've already chosen the best response.1
i dont understand.. can you do it step by step
 2 years ago

LoveUu Group TitleBest ResponseYou've already chosen the best response.1
If cos x = 1/2 then x = cos^(1) (1/2) therefore, x = 60 degrees , 300 degrees {where x is greater than or equal to 0 and lesser than or equal to 360} or pi/3 radians, 5pi/3 radians {where x is greater than or equal to 0 and lesser than or equal to 2pi}
 2 years ago

sabika13 Group TitleBest ResponseYou've already chosen the best response.1
okay.. so we do not need to use trigonometric identities?
 2 years ago

sabika13 Group TitleBest ResponseYou've already chosen the best response.1
the trig identities chart*
 2 years ago

LoveUu Group TitleBest ResponseYou've already chosen the best response.1
is it ok?now or not?
 2 years ago

sabika13 Group TitleBest ResponseYou've already chosen the best response.1
i think its okay.. i basically just solve sinx and cosx?
 2 years ago

LoveUu Group TitleBest ResponseYou've already chosen the best response.1
which grade r u in?
 2 years ago

sabika13 Group TitleBest ResponseYou've already chosen the best response.1
thank u for yourhelp.
 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.