Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

my-geek-pride Group Title

Use trig identites to transform the left side of equation into the right. (1+cos theta)(1-cos theta)= sin^2theta

  • 10 months ago
  • 10 months ago

  • This Question is Open
  1. AravindG Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    1+cos theta =2cos^2 theta/2

    • 10 months ago
  2. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    multiply on the left, and get \[1-\cos^2(\theta)\] then it should be easy enough

    • 10 months ago
  3. AravindG Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    1-cos theta=2sin^2 theta/2

    • 10 months ago
  4. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    is it clear that \[1-\cos^2(\theta)=\sin^2(\theta)\]?

    • 10 months ago
  5. my-geek-pride Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    ooohh. yea. I see.

    • 10 months ago
  6. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    kk good

    • 10 months ago
  7. my-geek-pride Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    thank you(:

    • 10 months ago
  8. satellite73 Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    yw

    • 10 months ago
  9. goformit100 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    "Welcome to OpenStudy. I can guide regarding this useful site; ask your doubts from me, for it you can message me. Please use the chat for off topic questions. And remember to give the helper a medal, by clicking on "Best Answer". We follow a code of conduct, ( http://openstudy.com/code-of-conduct ). Please take a moment to read it."

    • 10 months ago
  10. adila98 Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    use identity ---> a^2 - b^2 for lhs then prove using cos2 + sin2 = 1

    • 10 months ago
  11. mjithin Group Title
    Best Response
    You've already chosen the best response.
    Medals 0

    (1+cosθ)(1−cosθ)=(1−cosθ+cosθ−cos2θ) = sin2theta

    • 10 months ago
    • Attachments:

See more questions >>>

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.