A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • 5 years ago

Solve the given equation and indicate the number of values of θ sach that 0≤θ<2π ,that satisfy the iquation; Sin3a+sina=0

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

    Perhaps this identity will help: \[\sin(a) + \sin(3a) = 4 \cos(a)^{2}\sin(a)\] sin^2 + cos^==1 a={0,Pi/2}

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

    This is a question with multiple choice of answers. In this problems they are ranging from 0 to 8. Which one is right? Thank you for you help!

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

    First of all, sin^2 + cos^==1 should have been posted as follows: \[\sin(a)^2+\cos(a)^2=1\] The problem statement is: "the sine of three times the angle "a" added to the sine of the same angle "a" is equal to zero." There are restrictions attached to the angle "a". The symbol in the restriction statement, that looks like the symbol "8", is the greek character "theta", a symbol that is interpreted by most experienced math folks as "angle". The person who created the problem should have used "a" rather than theta in the context of this problem and the experience level of the problem solver. What the restriction statement is saying is that only the solution angle values that are equal to or greater than zero and at the same time less than the angle 2 Pi (360 degrees) should be presented as equation solutions for a. For instance any negative angles that are solutions to the equation, although valid, should not be presented. I hope this answers you questions.

  4. 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.