Quantcast

A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

burhan101

  • 2 years ago

trig identity

  • This Question is Closed
  1. burhan101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[\huge \frac{ sinx-2sinx^3 }{ 2\cos^3x-cosx } = tanx \]

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

    is this proving? or simplifying?

  3. burhan101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    proving

  4. burhan101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the left side is confusing me to the max

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

    |dw:1353299892857:dw|

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

    The first step I factored out sinx and cosx The second step I used the double angle formula for cos2x

  7. burhan101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    o.O you made it look so easy, how are you so good at these ?

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

    Its all practice, I suggest you don't ask other people and actually spend at least 5 or 10 minutes trying to figure it out. You get better as you do more

  9. burhan101
    • 2 years ago
    Best Response
    You've already chosen the best response.
    Medals 0

    i do try them all out before asking but i ALWAYS get stuck :S

  10. 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.