Ask a New Question
Menu

Use a half-angle identity to

  1. Calculate cos 37.5 using a half angle identity
    1. answers icon 2 answers
    2. Alex asked by Alex
    3. views icon 169 views
  2. find cos x/2, sin x = 1/4, 360 < x < 450, use half-angle identity
    1. answers icon 0 answers
    2. Onedope asked by Onedope
    3. views icon 374 views
  3. How to solve sin(x/2) = 1 - cos x? I know you would use the half angle identity sin(x/2) = +-(√1 - cos x/2), just don't know
    1. answers icon 2 answers
    2. Karen asked by Karen
    3. views icon 427 views
  4. How to solve sin(x/2) = 1 - cos x? I know you would use the half angle identity sin(x/2) = +-(√1 - cos x/2), just don't know
    1. answers icon 0 answers
    2. Karen asked by Karen
    3. views icon 443 views
  5. find the exact value by using the appropriate half-angle identity:sin(5pi/12)
    1. answers icon 1 answer
    2. Sandy asked by Sandy
    3. views icon 655 views
  6. Find the exact value of tan 5pi/12 using the half-angle identity.
    1. answers icon 1 answer
    2. Cynthia asked by Cynthia
    3. views icon 4,426 views
  7. Use a half-angle identity to find the exact value for sec(x/2) if sinx = -12/13 ; 3pi/2 < x < 2pi
    1. answers icon 1 answer
    2. Anna asked by Anna
    3. views icon 525 views
  8. use a half-angle identity to find the exact value of tan 105 degrees.
    1. answers icon 1 answer
    2. Karen asked by Karen
    3. views icon 4,739 views
  9. Find the exact value by using a half-angle identity. cos 22.5 degrees
    1. answers icon 1 answer
    2. Omar asked by Omar
    3. views icon 2,181 views
  10. Find the exact value using half angle identity sin(22.5 degrees)
    1. answers icon 1 answer
    2. views icon 71 views