This integral is just whooping my butt

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The integral of e^(sqrt(2x) + 3) is causing confusion due to discrepancies between personal calculations and the textbook answer. A suggested substitution of y = sqrt(2x) could simplify the process, reducing the need for multiple substitutions. The book's answer appears to factor the expression differently, leading to the observed differences. Clarification on the method and substitution could help align personal results with the textbook. Understanding the correct approach is essential for solving this integral effectively.
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Homework Statement



General antiderivative of:

e^(sqrt(2x) + 3)

Homework Equations





The Attempt at a Solution



http://imageshack.us/photo/my-images/171/integralm.png/

I have no idea what to do, my process is chaotic. I arrive at an answer but it doesn't seem to agree with the book.
 
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Your answer looks correct, though the book answer would probably factor it: (\sqrt{2x}-1)\exp(\sqrt{2x}+3). Is that what the difference is?

As to your method, you could just make one substitution, y = \sqrt{2x}, rather than making two.
 
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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