compute: sin(pie/8) cos(pie/8)

show the answer.
in Trigonometry 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

pi/8 =180/8=22.5 deg... sine(22.5deg)=0.382683432... kosine(22.5 deg)=0.923879532... sine*kosine=0.35355339
by

Related questions

1 answer
if cos angle = m, find sin(angle-pie/2)
asked Jan 8, 2016 in Trigonometry Answers by nikki | 563 views
1 answer
compute: 2tan pie/8 all over 1-tan 2pie/8
asked Aug 19, 2013 in Trigonometry Answers by anonymous | 539 views
1 answer
limit x approaches 0 of e^sin (pie / x) * cos x by squeeze thm
asked Sep 30, 2013 in Calculus Answers by anonymous | 550 views
1 answer
integral from pie over two cos qubed(1/2x)sin(1/2x)dx
asked Feb 8, 2013 in Calculus Answers by anonymous | 581 views
1 answer
solve algebraically: cos(x+90) = 2sin^2x,-pie/2 <x< pie/2
asked Jan 10, 2016 in Trigonometry Answers by nikki | 638 views
1 answer
simplify: sin(x+pie).tan(x+pie/2).sec(pie/2 - x)
asked Jan 10, 2016 in Trigonometry Answers by nikki | 587 views
1 answer
compute: cos(23pie/12)
asked Aug 19, 2013 in Trigonometry Answers by anonymous | 585 views
1 answer
compute the definite integral of dt|cos^nt
asked Sep 22, 2012 in Pre-Algebra Answers by anonymous | 693 views
1 answer
∫ sin ( 5.75 x ) ^8.25 cos ( 5.75 x )^ 5 d x
asked Mar 14, 2019 in Trigonometry Answers by apoorva | 471 views
1 answer
Find Sin and Cos given Cos2B=1/8
asked Mar 31, 2013 in Trigonometry Answers by anonymous | 1.6k 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. complete the following. 825 use each digit once .make the two smallest 3 digit numbers and two largest 3-digit number (2)
  4. Solve 15 -1(12÷4+1)? (4)
  5. 8:4(5+2) (3)

Most popular tags

87,544 questions
99,732 answers
2,417 comments
484,537 users