Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

wach

  • 3 years ago

Some simple inverse trig functions. Can you check my answers? 1. sin(tan^-1 -4/30 = -3/5 2. sin^-1(sin(5pi/4) = -pi/4

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

    Assuming that 0 is a parenthesis in 1) |dw:1349413412829:dw|the sine is opp/hyp which is -4/5

  2. EulerGroupie
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    2) looks good though

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

    Oh, right. Because tan inverse exists only in the 4th and 1st quadrant, thus it's -4 instead of -3. Ok. Cool, makes sense. Thanks! :)

  4. EulerGroupie
    • 3 years ago
    Best Response
    You've already chosen the best response.
    Medals 1

    You're welcome.

  5. 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