Adblock breaks this site

Help with Trigonometry?

Discussion in 'General Discussion' started by musicman, Dec 7, 2011.

Thread Tools

Thread Tools

  • Thread ID:
  1. musicman

    musicman Active Member
    Banned

    Joined:
    Oct 1, 2007
    Posts:
    157
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    been stuck on a couple problems.. help would be greatly appreciated.

    express (sinθ+cosθ)/cos θ in terms of tan θ

    express sec θ - sin θ tan θ in terms of cos θ

    Express (cos2) x (secx) in terms of cos x
     
    musicman, Dec 7, 2011
    #1
  2. Zerkerfist

    Zerkerfist ♥..My kingdom for a kiss upon her shoulder..♥
    $5 USD Donor New

    Joined:
    Jul 15, 2011
    Posts:
    7,247
    Referrals:
    3
    Sythe Gold:
    5
    Help with Trigonometry?
    I feel your pain.... I am starting my trig unit tonight :sick:
     
    Zerkerfist, Dec 7, 2011
    #2
  3. musicman

    musicman Active Member
    Banned

    Joined:
    Oct 1, 2007
    Posts:
    157
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    I'm taking it online.. so there is little help
     
    musicman, Dec 7, 2011
    #3
  4. Imagine

    Imagine Grand Master

    Joined:
    May 31, 2010
    Posts:
    3,375
    Referrals:
    4
    Sythe Gold:
    5
    Chess Master
    Help with Trigonometry?
    #1 is tan() + 1
    might do the others later. join sythe-irc.org for help :p
     
    Imagine, Dec 7, 2011
    #4
  5. musicman

    musicman Active Member
    Banned

    Joined:
    Oct 1, 2007
    Posts:
    157
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    doing it, already got number 1 but thanks
     
    musicman, Dec 7, 2011
    #5
  6. BumbleB3e

    BumbleB3e Newcomer

    Joined:
    Dec 7, 2011
    Posts:
    10
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    What class is this for?
     
    BumbleB3e, Dec 7, 2011
    #6
  7. Jimmy

    Jimmy Ghost
    Retired Sectional Moderator $5 USD Donor

    Joined:
    Jun 24, 2008
    Posts:
    2,421
    Referrals:
    10
    Sythe Gold:
    25
    Help with Trigonometry?
    Just break everything up into sines/cosines and simplify.

    csc(θ) = 1/sin(θ)
    sec(θ) = 1/cos(θ)
    tan(θ) = sin(θ)/cos(θ)
    cot(θ) = cos(θ)/sin(θ)
    sin^2(θ) + cos^2(θ) = 1
     
    Jimmy, Dec 7, 2011
    #7
  8. Piramid

    Piramid 20XX
    $100 USD Donor New

    Joined:
    May 31, 2011
    Posts:
    1,709
    Referrals:
    0
    Sythe Gold:
    16
    Heidy
    Help with Trigonometry?
    also
    sin^2(θ)-1=cos^2(θ)
    cos^2(θ)-1=sin^2(θ)
     
    Piramid, Dec 7, 2011
    #8
  9. Sypherz

    Sypherz Legend
    $5 USD Donor New Retired Sectional Moderator Competition Winner

    Joined:
    Dec 13, 2008
    Posts:
    23,745
    Referrals:
    1
    Sythe Gold:
    622
    Discord Unique ID:
    1303476485860098070
    M
    Sythe's 10th Anniversary
    Help with Trigonometry?
    There are some simple rules for all of these. 6 of them I believe? I suggest you memorize :)
     
    Sypherz, Dec 7, 2011
    #9
  10. ezkNYNE

    ezkNYNE Member
    Banned

    Joined:
    Dec 7, 2011
    Posts:
    80
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    I recently (yesterday) started trig. I was wondering which academic stream / grade level that problem stems from. I'm in Grade 10 Math, Academic (Highest stream possible, apart from University which comes into play Grade 11 w/ Advanced Functions).
     
    ezkNYNE, Dec 7, 2011
    #10
  11. sellingraresboy

    sellingraresboy Active Member
    Banned

    Joined:
    Dec 2, 2011
    Posts:
    171
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    Omg omg am i dreaming? I hate that! Good luck i hope that you will do better on the exams then me, 1 being the worst mark and 5 the max, i did 2, =( gl for you.
     
    sellingraresboy, Dec 7, 2011
    #11
  12. Insidious Insinuations

    Insidious Insinuations Apprentice
    Banned

    Joined:
    Feb 5, 2011
    Posts:
    971
    Referrals:
    0
    Sythe Gold:
    0
    Help with Trigonometry?
    Post it here next time: Homework Help

    I didn't try solving them, but knowing double angle formulas and expressing them all in cosines/sines will make it much easier. ;)
     
    Insidious Insinuations, Dec 8, 2011
    #12
  13. neo coolboy

    neo coolboy Apprentice

    Joined:
    Jul 28, 2007
    Posts:
    938
    Referrals:
    2
    Sythe Gold:
    1
    Help with Trigonometry?
    Dude I just started the trig section too, and it sucks. Are you from Florida by any chance?
     
    neo coolboy, Dec 8, 2011
    #13
  14. Herman Li

    Herman Li Grand Master
    Banned

    Joined:
    Aug 13, 2008
    Posts:
    2,373
    Referrals:
    1
    Sythe Gold:
    0
    Help with Trigonometry?
    Trig's easy. Just wait til Calc II. Fml
     
    Herman Li, Dec 8, 2011
    #14
  15. Piramid

    Piramid 20XX
    $100 USD Donor New

    Joined:
    May 31, 2011
    Posts:
    1,709
    Referrals:
    0
    Sythe Gold:
    16
    Heidy
    Help with Trigonometry?
    same with me, I'm in grade 10 but I started trig in grade 9.
     
    Piramid, Dec 8, 2011
    #15
< Muslim gang let off sentence because they was not used to being Drunk. | What is happening in Scotland >


 
 
Adblock breaks this site