A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

Super Confused...Any help is appreciated. Its Geometry btw

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

    wat im posting it

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

    i only need help with last 2 pages. The others are for references

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

    @jim_thompson5910 please help

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

    @jim_thompson5910

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

    @jim_thompson5910

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

    @jim_thompson5910 please help

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

    @ganeshie8

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

    what do you need, the sine and cosine questions?

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

    i just dont understand what im supposed to do on the last 2 pages.

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

    what you need is a good trig cheat sheet look at the unit circle on the last page of the attached

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

    lets say you want \[\cos(\frac{\pi}{6})\] find the angle \(\frac{\pi}{6}\) and look at the corresponding point on the unit circle the first coordinate of that point is \(\cos(\frac{\pi}{6})\) and the second coordinate is \(\sin(\frac{\pi}{6})\)

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

    hmmm

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

    let me know when you see it, then we can do one more

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

    i see it, whats confusing me is that, im not sure what my teacher is wanting me to put in the blanks on the last 2 pages.

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

    i think the values of sine and cosine asked for

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

    as for the first question, since the radius is 1, instead of \[\cos(\theta)=\frac{opposite}{adjacent}\] it is just \[\cos(\theta)\] is the first coordinate of the point on the unit circle (since the hypotenuse is 1)

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

    i still dont understand. sorry

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

    |dw:1441853953843:dw|

  19. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes that's the point on the unit circle when the angle is 30 degrees the x coordinate is equal to cos(30 degrees) the y coordinate is equal to sin(30 degrees) |dw:1441854248061:dw|

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

    Is this the answer?

  21. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So that means \[\Large \cos(30^{\circ}) = \frac{\sqrt{3}}{2}\] \[\Large \sin(30^{\circ}) = \frac{1}{2}\]

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

    |dw:1441854362314:dw|

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

    so i would put |dw:1441854545172:dw|

  24. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    30 degrees is NOT in quadrant 2

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

    would this be right for quadrant 1??

  26. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yeah 30 degrees is in quadrant 1

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

    change the 30 degrees to 120??

  28. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    why do that?

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

    because 120 degrees is in quadrant II

  30. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    what would cos(120) be equal to

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

    -1/2?

  32. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

  33. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    and sin(120) ?

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

    square root of 3 /2

  35. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    good

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

    Do i just do that for the rest of them???

  37. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    yes

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

    OK thanks a ton!

  39. jim_thompson5910
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    no problem

  40. 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.