Can someone help with this exercise? stuck on a probabily silly part

ferrika3

New member
Joined
Apr 15, 2021
Messages
5
Hello!
I have to complete an assignment and one of the exercises says:

1618495573569.png
I have been working on it for a while and i always get a 1/4 too much, is it solvable or can it be an error of the text?
this is what i get:
1618495985801.png

Thank you so much for your time and help :)
 

Jomo

Elite Member
Joined
Dec 30, 2014
Messages
10,368
Your 3rd line is not correct. Try again and post back your results
 

lex

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Mar 3, 2021
Messages
387
\(\displaystyle \frac{dy}{du}=4u^3\quad \) (not \(\displaystyle u^3\))
 

ferrika3

New member
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Apr 15, 2021
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5
Thank you all for the help, I am sorry for the late answer but work got in the way. Here's the corrected version which hopefully should be correct.
1618835606748.png
 

lex

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Mar 3, 2021
Messages
387
That's it. (With x≥1, y≥0 assuming Real numbers).
 

ferrika3

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Apr 15, 2021
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5
Thank you!
 

lex

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Mar 3, 2021
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387
You're welcome.
 
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