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    Hi, i'm really stuck on this c3 questions! Please help!

    2sin2x + cosx = 0 solve the equation for 0<x<360
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    2sin2x = 4sincosx

    Factorise the equation by taking a factor of cos out.
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    (Original post by insparato)
    2sin2x = 4sincosx

    Factorise the equation by taking a factor of cos out.
    :eek: Sloppy. Do you really mean sin(cosx)? :p:

    2 sin(2x) = 4 sinx cosx.

    Take a factor of cosx out. :p:
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    No i didnt i missed the x out :p:.

    Yes very sloppy indeed .
 
 
 
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Updated: October 8, 2006

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