« previous next »
Pages: [1] 2  All   Go Down

Author Topic: Trig Problems  (Read 9200 times)

0 Members and 2 Guests are viewing this topic.

trust

  • Guest
Trig Problems
« on: April 29, 2006, 11:15:51 am »
This is an assignment I'm having trouble with, it's due next class (Tuesday). I've answered some of them so I'll just post what I haven't. Trig is really hurting my grade and frankly I don't care if I learn it as long as I get out of this unit (which seems to have gone on forever) with a passing grade.

Show work:

Verify each identity


Solve each equation over the interval [0,2pi]. Give exact answers (I guess that means radian form.)


Find the complete solution set for each equation. Give exact answers.


Approximate the solutions of the equation in the interval [0,2pi]. Use a graphing calculator.
Logged

Offline rabbit

  • x86
  • Hero Member
  • *****
  • Posts: 8092
  • I speak for the entire clan (except Joe)
    • View Profile
Re: Trig Problems
« Reply #1 on: April 29, 2006, 07:13:37 pm »
It's been a while since trig, but I can say this:
tan2x - 3 = 0
tan2x = 3
tanx = sqrt(3)
x = tan-1(sqrt[3])
x = pi/6, 5pi/6, 7pi/6, 11pi/6
Logged

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #2 on: May 01, 2006, 07:20:49 pm »
Do you still need these?
« Last Edit: May 01, 2006, 07:56:09 pm by dark_drake »
Logged
errr... something like that...

trust

  • Guest
Re: Trig Problems
« Reply #3 on: May 01, 2006, 08:02:18 pm »
Quote from: dark_drake on May 01, 2006, 07:20:49 pm
Do you still need these?

Yes. I actually have an AP exam tomorrow and don't have to turn these in until Thursday now. (We are excused from all classes for the day if we have exams.)
Logged

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #4 on: May 01, 2006, 08:48:51 pm »
Okay, it took a while to type, but I got the first 5.
1, working from the left side


2, working from the right side


3, working from the right and then the left side


4, working from the right side


5,working from the left side


Ok, I tried to show all my work.  I'm just hoping it makes sense to you.
Logged
errr... something like that...

Offline Sidoh

  • x86
  • Hero Member
  • *****
  • Posts: 17634
  • MHNATY ~~~~~
    • View Profile
    • sidoh
Re: Trig Problems
« Reply #5 on: May 01, 2006, 08:54:27 pm »
All wrong.  Terribly, disgustingly wrong.

You get an F.
Logged

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #6 on: May 01, 2006, 08:56:00 pm »
Quote from: Sidoh on May 01, 2006, 08:54:27 pm
All wrong.  Terribly, disgustingly wrong.

You get an F.
F for FANTASTIC!!!!
Logged
errr... something like that...

Offline Sidoh

  • x86
  • Hero Member
  • *****
  • Posts: 17634
  • MHNATY ~~~~~
    • View Profile
    • sidoh
Re: Trig Problems
« Reply #7 on: May 01, 2006, 09:00:51 pm »
Quote from: dark_drake on May 01, 2006, 08:56:00 pm
F for FANTASTIC!!!!

More like FUCKINGAWESOME!
Logged

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #8 on: May 02, 2006, 01:00:34 am »
Quote from: Sidoh on May 01, 2006, 09:00:51 pm
More like FUCKINGAWESOME!
That would describe the backscratcher I just found perfectly.
Logged
errr... something like that...

trust

  • Guest
Re: Trig Problems
« Reply #9 on: May 02, 2006, 08:50:59 pm »
Thanks.

Feel free to partake in the remainder. ;)
Logged

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #10 on: May 02, 2006, 10:45:17 pm »
Quote from: OG Trust on May 02, 2006, 08:50:59 pm
Thanks.

Feel free to partake in the remainder. ;)
Ok, I'll do them tonight or tomorrow.
Logged
errr... something like that...

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #11 on: May 03, 2006, 08:33:51 pm »
Not really sure how to do:

but those are the answers.  I'd probably say guess and check with each value you have on the unit circle.

Or... you could graph it and look at the graph.
Logged
errr... something like that...

trust

  • Guest
Re: Trig Problems
« Reply #12 on: May 03, 2006, 08:35:46 pm »
Alright, I hate to be a nuisance but had you intended on doing the other 4 or so? I just need to know since I have to turn this in 11 hours from now.
Logged

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #13 on: May 03, 2006, 10:30:33 pm »
yeah, let me type them up
Logged
errr... something like that...

Offline dark_drake

  • Mufasa was 10x the lion Simba was.
  • x86
  • Hero Member
  • *****
  • Posts: 2440
  • Dun dun dun
    • View Profile
Re: Trig Problems
« Reply #14 on: May 03, 2006, 10:49:13 pm »
Number 7


Number 8


Number 9


Number 10


I think that's it.  Sorry about no work, calculators have made me lazy.
Logged
errr... something like that...
Pages: [1] 2  All   Go Up
« previous next »