Originally Posted by cm917 Sorry..coz I am not familiar with how to use the math symbol...so i didnt post it...
let e^t = u du/dt = e^t
My(t) = 1/18 u^2 / ( 1-3/2 u+5/9 u^2)
Applying quotient rule:
--> (1/9u-1/12 u ^2) / (1-2/3u+5/9u^2)^2
Should I let t=0...then....it turns out... (1/9-1/12 )/(1-3/2+5/9)^2 = 9
am I on the right track?
Your expression for is correct and it's value at is correct.
However, you clearly need to multiply that result by the value of at . Since this multiplying factor is equal to 1, you did in fact get the correct final answer - but by luck ....
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