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

1. 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
Attached Files
2. This is the equation to differentiate by d.doc (57.0 KB, 114 views)
3. 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?
4. hmmm i'll check after i hae a quick shower
5. 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.
6. yep your right i see it now because there are two 'x' parts to differentiate thankyou !!

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Updated: January 31, 2010
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