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Shawna17

Solve the equation on the interval [0, 2π). cos x + 2 cos x sin x = 0

  • one year ago
  • one year ago

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  1. Swaazy
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    • one year ago
  2. Shawna17
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    ok then what?

    • one year ago
  3. Swaazy
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    thats the answer

    • one year ago
  4. ZeHanz
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    You should explain a little...

    • one year ago
  5. ZeHanz
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    (@Swaazy )

    • one year ago
  6. Swaazy
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    naaaaah

    • one year ago
  7. churrity
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    I like toast

    • one year ago
  8. ZeHanz
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    Try to factor: you can factor out cos x

    • one year ago
  9. ZeHanz
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    cos x(1+2sin x)=0

    • one year ago
  10. Swaazy
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    quit trippin . . .

    • one year ago
  11. churrity
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    ZeHanz = Afganistan PIMP

    • one year ago
  12. ZeHanz
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    So cos x = 0 or 1+2sin x = 0

    • one year ago
  13. Shawna17
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    ok

    • one year ago
  14. Swaazy
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    don't lie . . .

    • one year ago
  15. churrity
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    dry your eye

    • one year ago
  16. Shawna17
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    @Swaazy look i asked for help not someone to annoy me

    • one year ago
  17. Swaazy
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    and here comes your mother with those two little guys. Punched me in the belly and stepped on my feet, wauh slammed the bit* on the hard concrete

    • one year ago
  18. ZeHanz
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    cos x = 0 or sin x = -½ Now try to remember what values of x will give cos x = 0 or sin x = -½...

    • one year ago
  19. churrity
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    The pimp was strong, the bit*h was gone, something was wrong I said what is going on?

    • one year ago
  20. Shawna17
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    @Swaazy you are now block thanks have a nice life

    • one year ago
  21. Swaazy
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    yo

    • one year ago
  22. ZeHanz
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    @Shawna17: can you look up these values in a table?

    • one year ago
  23. Shawna17
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    how would I do that do you have a link?

    • one year ago
  24. ZeHanz
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    You could use this one, see image

    • one year ago
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  25. Shawna17
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    my choices are A. 0, pi/2, 7pi/6, 3pi/2 B. pi/2, 7pi/6, 3pi/2,11pi/6 C 7pi/6, 11pi/6, 2pi D. 7pi/6, 11pi/6

    • one year ago
  26. ZeHanz
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    cos x = 0 gives pi/2 and 3pi/2 sin x = -½ gives 7pi/6 and 11pi/6

    • one year ago
  27. Shawna17
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    so it's B

    • one year ago
  28. ZeHanz
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    Yup!

    • one year ago
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