How do I use the unit circle?

Can someone explain how to use the unit circle to find sin 90, csc 270, tan 360, and cot (-180).

I really don't understand how this work. Can someone explain? Thanks.
in Algebra 1 Answers by

Your answer

Your name to display (optional):
Privacy: Your email address will only be used for sending these notifications.
Anti-spam verification:
To avoid this verification in future, please log in or register.

1 Answer

FIRST learn the 30-60-90 right triangle and the 45-45-90 right triangle very thoroughly. Then the unit circle will be easy. Otherwise it will be a royal pain.
by Level 2 User (1.8k points)

Related questions

0 answers
the unit circle
asked Apr 18, 2013 in Trigonometry Answers by anonymous | 1.4k views
1 answer
Use Unit Circle to answer the following.
asked Sep 17, 2013 in Calculus Answers by Desilynn712 Level 1 User (120 points) | 1.3k views
1 answer
how do you graph complex roots on the (unit) circle
asked May 1, 2011 in Algebra 1 Answers by anonymous | 887 views
Welcome to MathHomeworkAnswers.org, where students, teachers and math enthusiasts can ask and answer any math question. Get help and answers to any math problem including algebra, trigonometry, geometry, calculus, trigonometry, fractions, solving expression, simplifying expressions and more. Get answers to math questions. Help is always 100% free!

Most popular questions within the last 3000 days

  1. 50+50-25X0+2+2= (19)
  2. it takes 10 road workers 5 days to complete a road repair when working 2 hours a day.Working at the same pace,how many days will it take 2 people working 5 hours a day to finish it? (3)
  3. Solve 15 -1(12÷4+1)? (4)
  4. 8:4(5+2) (3)
  5. How can i represent 1/3; 3/3; 7/3; 10/3 and 15/3 on a number line? (1)

Most popular tags

87,516 questions
100,279 answers
2,420 comments
731,974 users