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Integrate this Watch

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\int \frac {x+1}{x^2+4x+5} dx

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    (Original post by Maths6186a)
    



\int \frac {x+1}{x^2+4x+5} dx

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    write it as  \displaystyle \int \frac {x+2}{x^2+4x+5} \:dx - \int \frac{1}{x^2+4x+5} \: dx

    left hand side is of the form  \displaystyle k\int \frac{f'(x)}{f(x)} and right hand side can be done by completing the square and using a tan substitution
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    (Original post by Maths6186a)
    



\int \frac {x+1}{x^2+4x+5} dx

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    But I don't want to integrate it
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    Ask WolframAlpha if you're too lazy to do it yourself.
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    (Original post by alow)
    Ask WolframAlpha if you're too lazy to do it yourself.
    So me not knowing how to do something = me being to lazy to do it?
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    (Original post by Maths6186a)
    So me not knowing how to do something = me being to lazy to do it?
    Why are you doing a question where you have no idea how to approach it then?? Learn about these integrals first.
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    (Original post by Maths6186a)
    So me not knowing how to do something = me being to lazy to do it?
    No, you just said 'integrate this.' You didn't post any of your own ideas/attempts and did not mention where you were stuck. You're not asking for help; you're just asking for the whole solution. That is being lazy.
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    (Original post by RDKGames)
    Why are you doing a question where you have no idea how to approach it then?? Learn about these integrals first.
    Sorry sir. Am I getting a detention now?
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    (Original post by IrrationalRoot)
    No, you just said 'integrate this.' You didn't post any of your own ideas/attempts and did not mention where you were stuck. You're not asking for help; you're just asking for the whole solution. That is being lazy.
    I didn't mention where I was stuck because I had no idea how to do it from the beginning. I spent a good while failing to do the problem before posting on here. Silly billy.
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    (Original post by Maths6186a)
    I didn't mention where I was stuck because I had no idea how to do it from the beginning. I spent a good while failing to do the problem before posting on here. Silly billy.
    "You're not asking for help; you're just asking for the whole solution."

    Anyway it's pretty sad that you post a thread demanding the complete solution to a problem and then you try to patronise the people who explain what's wrong with that.
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    (Original post by IrrationalRoot)
    "You're not asking for help; you're just asking for the whole solution."

    Anyway it's pretty sad that you post a thread demanding the complete solution to a problem and then you try to patronise the people who explain what's wrong with that.
    not really
 
 
 
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