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Indefinite Integration Calculus

  • Thread starter stoofertje
  • Start date
  • #1
1. So I need to solve the following integral


∫1/(2+√x)



The Attempt at a Solution


By double integrating with u-substitution, I got to the following answer: 4+2√x-4ln(2+√x) + C

I can't find out where I go wrong, cause the answer is 2√x-4ln(2+√x), it has been a while, so maybe the +4 just adds to the constant?


Thanks in advance guys,
 
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Answers and Replies

  • #2
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1. So I need to solve the following integral


∫1/(2+√x)



The Attempt at a Solution


By double integrating with u-substitution, I got to the following answer: 4+2√x-4ln(2+√x) + C

I can't find out where I go wrong, cause the answer is 2√x-4ln(2+√x), it has been a while, so maybe the +4 just adds to the constant?
Yes, your answer and the official one you showed differ only by a constant, so both are correct.
 

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