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can you check this differentiation is right ....... hard one!! watch

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    this i squite a hard differential equation ...... maybe i dont know can someone clarify that what i have done is right

    microsoft word attachment at bottom
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  1. File Type: doc This is the equation to differentiate by d.doc (57.0 KB, 114 views)
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    The j and k bits look correct.. However the i bit i don't agree with due to you needing product rule surely? as you have x^2 (times) e^xz, so you'd get y(2xe^xz+x^2ze^xz) surely?
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    hmmm i'll check after i hae a quick shower
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    The j and k bits look correct.. However the i bit i don't agree with due to you needing product rule surely? as you have x^2 (times) e^xz, so you'd get y(2xe^xz+x^2ze^xz) surely?
    This.
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    yep your right i see it now because there are two 'x' parts to differentiate thankyou !!
 
 
 
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