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    Stuck on 5ai ignore the note on the side lol
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    (Original post by Mitul106)
    Stuck on 5ai ignore the note on the side lol
    Look at your d(theta)/dx, there is something wrong with it.


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    (Original post by Mitul106)
    Stuck on 5ai ignore the note on the side lol
    dy/dx becomes -3cos2x/sinx
    remember that cos2x=cos^2(x)-sin^2(x)
    sub that in and theres your answer.
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    when you did inverse of dx/dθ it should have been
    -1/(2*sinθ) not (-1/2)*sinθ
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