Differentiate, but do not simplify: ##y=3ln(4-x+5x^2)##

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The discussion centers on differentiating the function y=3ln(4-x+5x^2). Participants express confusion over the presence of a "u" term in the differentiation process, questioning whether it was a typo. There is also a debate about the necessity of simplifying the expression, with some asserting it appears simple enough already. The conversation encourages the use of LaTeX for clarity in mathematical expressions and offers support for those struggling with the notation. Overall, the thread emphasizes the importance of accurate differentiation while maintaining the original complexity of the expression.
ttpp1124
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Homework Statement
can someone check to see if my work is correct?
Relevant Equations
n/a
IMG_4238.jpg
 
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It looks like there's a "u" term in your answer but none in the original problem. A typo?
 
DaveE said:
It looks like there's a "u" term in your answer but none in the original problem. A typo?
please excuse me horrible writing, it's supposed to be a 4
 
OK, then I'm happy. I'm not sure about the do not simplify part, it looks pretty simple already!
 
ttpp1124 said:
please excuse me horrible writing, it's supposed to be a 4

A solution to this problem is by using Latex. It is really not that hard: write what you would expect and put it between double hashtags:

I promise we will be there to help you learn it if you struggle!
 
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What part of this calculation were you not confident about? Why do you ask, instead of knowing you are correct?
 
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Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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