Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Rosy95

  • 2 years ago

Please check my answer (PreCal)

  • This Question is Closed
  1. Rosy95
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Solve csc x + 2 = 0 for 0 < x < 2pi. I think it is 7pi/6 and 11pi/6

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

    so you have csc(x) = -2 so sin(x) = -1/2 this is 3rd and 4th quadrants so pi + pi/6 = 7pi/6 (3rd quadrant) 2pi - pi/6 = 11pi/6 (4th Quadrant) so you solution looks great... well done

  3. Rosy95
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thanks. Can you help with this one though, I am confused. Solve 2 sin x + sqrt(3) < 0 for 0 x < 2.

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

    ok... so you will start with \[2\sin(x) < -\sqrt{3} \] so \[\sin(x) < - \frac{\sqrt{3}}{2}\] so aren't there 2 inequaitites to this in the 3rd quadrant \[\pi < x < \frac{4\pi}{3}\] and the 4th quadrant \[\frac{5\pi}{3} < x < 2\pi\] tough question, I not really confident on the solutions...

  5. Rosy95
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    The answer choices are \[\frac{ 4\pi }{3 } < x < \frac{ 5\pi }{ 3 }\] \[\frac{ 2\pi }{3 } < x < \frac{ 4\pi }{ 3 }\] \[\frac{ 7\pi }{6 } < x < \frac{ 11\pi }{ 6 }\] \[\frac{ 5\pi }{6 } < x < \frac{ 7\pi }{ 6 }\]

  6. Rosy95
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so it would be a?

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

    that would be my best guess... but its only a guess...

  8. Rosy95
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Thank you!

  9. 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

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.