Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

William812

  • 3 years ago

Give the exact value of the expression without using a calculator: sin(2cos(inv) 1/5)

  • This Question is Open
  1. AKANicole
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    idk

  2. telijahmed
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    let cos(inv) 1/5 = A

  3. telijahmed
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\sin (2A)= 2sinAcosA\]

  4. telijahmed
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    what is A you substitute

  5. telijahmed
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[2\sin (\cos ^{-1}1/5) \cos (\cos ^{-1}1/5)\]

  6. telijahmed
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[2\sin (\cos ^{-1}1/5) * 1/5\]

  7. telijahmed
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    can you go on from here

  8. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy