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    Given that ' Y = tan^-1 x , express X in terms of Y


    ii) Hence find Dx/dy in terms of Y


    Stuck on these 2 questions. Any help would be appreciated. Thanks
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    tany = x

    dx/dy = sec2y
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    (Original post by TerrorSquad)
    Given that ' Y = tan^-1 x , express X in terms of Y


    ii) Hence find Dx/dy in terms of Y


    Stuck on these 2 questions. Any help would be appreciated. Thanks
    bit easy - usually ask you to find it in terms of x
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    (Original post by Phil23)
    bit easy - usually ask you to find it in terms of x

    Hmm this is strange lol. The question [from exam paper] is actually saying 'express X in terms of '
 
 
 
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