A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

sin(-x)=-cos(x) for all values of x. true of false?

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

    @JackJordan

  2. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    plugin \(x = 0\) and see if the equation satisfies

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

    thank you! got the answer i was looking for!! I will definitely be @ ing you a lot more tonight!

  4. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Awesome! may i knw the answer you got

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

    it was false. right?

  6. ganeshie8
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Yep! good job!

  7. anonymous
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Yeah, there are better ways to see why. One would be to draw the graphs... another is to realise that sin(-x) = -sin(x) so the question really is sin(x) = cos(x) which is false :P

  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

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.