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Math Help - help antiderive these Riemann integrals

  1. #1
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    help antiderive these Riemann integrals

    Show manual steps to evaluate these integrals:

    1. antiderive: 1-x/x^2-2x dx u=X^2-2x

    2. antiderive(1 at bottom 9 on top): 2/(sqroot X)(1+sqrootx) dx u=1+sqrootX

    3. antiderive(1 at bottom, 5 is upper number): 2x-1/x+2 dx u=x+2
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Stuck686 View Post
    Show manual steps to evaluate these integrals:

    1. antiderive: 1-x/x^2-2x dx u=X^2-2x
    Here, tell me if you don't get something
    Attached Thumbnails Attached Thumbnails help antiderive these Riemann integrals-quest1.gif  
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  3. #3
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Stuck686 View Post

    2. antiderive(1 at bottom 9 on top): 2/(sqroot X)(1+sqrootx) dx u=1+sqrootX
    Here
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  4. #4
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by Stuck686 View Post

    3. antiderive(1 at bottom, 5 is upper number): 2x-1/x+2 dx u=x+2
    Here
    Attached Thumbnails Attached Thumbnails help antiderive these Riemann integrals-quest3.gif  
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  5. #5
    is up to his old tricks again! Jhevon's Avatar
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    Here. I made a mistake on the third one, I caught it when I tried to do it by another method. Make the necessary corrections
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  6. #6
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    wow thanks. Are you a math teacher?
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  7. #7
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    Quote Originally Posted by Stuck686 View Post
    wow thanks. Are you a math teacher?
    Hahaha, wow!

    No i am not, far from it!

    I guess i should take that as a compliment though.

    So i take it you understood everything i did. i did not do much explaining
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  8. #8
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    well i did not compare it to mine yet or really look at it. today is kind of a rest day
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