A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

anonymous

  • one year ago

sectheta - costheta / sintheta

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

    write sec theta in terms of sin,cos sec theta = what ? do you know ?

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

    yeS or n0 ?

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

    no :)

  4. jdoe0001
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    one would note there isn't really a questoin, just a statement

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

    what does sec equal to ?

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

    or in other words do you know the definition of sec theta ?

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

    Write in terms of sin and cosine and simplify

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

    did you read my comments ? I want to know how much you already know abt trig

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

    ^ :D

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

    Not much at all am taking it this semester just trying to get a head start

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

    thanks thank you!!! \[\rm \sin \theta = \frac{ 1 }{ \csc \theta }\]\[\cos \theta =\frac{ 1 }{ \sec \theta }\]\[\tan \theta=\frac{ 1 }{ \cot \theta } = \frac{ \sin \theta }{ \cos \theta }\] these are the definition of sin,cos and tan cos is reciprocal of sec

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

    so you can replace sec with 1/cos \[\huge\rm \frac{ \color{reD}{\sec} \theta -\cos \theta }{ \sin \theta }\] \[\huge\rm \frac{ \frac{ 1 }{ \cos \theta } -\cos \theta }{ \sin \theta }\] now find the common denominator of \[\frac{ 1 }{ \cos \theta }-\cos \theta \]

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

    Thanks

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

    no done yet.

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

    not*

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

    can you solve that from there ?

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

    Would be appreciated if you can finish it

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

    well,hm common denominator is cos \[\frac{ \frac{ 1-\cos^ 2 \theta }{ \cos }}{ \sin \theta }\] so multiply both terms by cos 1/cos times cos and cos times cos when you multiply same bases you should add their exponents so cos times cos = cos^2 and 1/cos times cos =1 tthat's how you get 1 -cos^2 theta

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

    now you must know this special identity \[\huge\rm sin^2 \theta+\cos^2 \theta =1\] solve this equation for sin^2 theta let me know what you get

  20. 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.