Math question

Discussion in 'Homework Help' started by KCHARROIS, Dec 3, 2012.

  1. KCHARROIS

    Thread Starter Member

    Jun 29, 2012
    292
    1
    Helping my brother out with a math question.

    Does sin/cos * sin = 1/cos ?

    Because if I take sin and divide it to both sides your left with cos?

    Thanks
     
  2. MrChips

    Moderator

    Oct 2, 2009
    12,415
    3,354
    Not as written.

    sin / (cos * sin) = 1/cos

    yes, assuming the angle is the same, i.e.

    sin(x)/ ( cos(x) * sin(x) )

    and x ≠ 0, π, 2π ...
     
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