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

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
This is the equation to differentiate by d.doc58.4KB
Reply 1
Avatar for ste0731
ste0731
12
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?
Reply 2
Avatar for tweety_2479
tweety_2479
OP
12
hmmm i'll check after i hae a quick shower
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.
Reply 4
Avatar for tweety_2479
tweety_2479
OP
12
yep your right i see it now because there are two 'x' parts to differentiate thankyou !!

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