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Solving: 3cos(t)-sin(t)cos(t)=0

  1. May 16, 2017 #1
    1. The problem statement, all variables and given/known data
    upload_2017-5-16_1-5-4.png

    2. Relevant equations


    3. The attempt at a solution
    cos(t) (3-sin(t)) = 0

    but I get cos(t) =0 and sin(t)=3

    but I thought sin(t) =3 is undefined?
     
  2. jcsd
  3. May 16, 2017 #2

    blue_leaf77

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    Then the factor that will give you the solutions is just ##\cos t = 0##.
     
  4. May 17, 2017 #3

    scottdave

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    Then the next step would be: What values of t make cos(t) equal zero?
     
  5. May 18, 2017 #4

    haruspex

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    No, you get cos(t) =0 or sin(t)=3.
     
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