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sat_chen

stuck at this part in trig substitution

  • one year ago
  • one year ago

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  1. sat_chen
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    |dw:1359527135188:dw|

    • one year ago
  2. sat_chen
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    |dw:1359527165469:dw|

    • one year ago
  3. sat_chen
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    am i missing something simple here?

    • one year ago
  4. RadEn
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    |dw:1359527286359:dw|

    • one year ago
  5. dumbcow
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    for sin^2 and cos^2 .... use integration by parts u = cos dv = cos du = -sin v = sin you will have to repeat it again

    • one year ago
  6. sat_chen
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    ah of course the infamous half aangles

    • one year ago
  7. dumbcow
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    haha or that

    • one year ago
  8. sat_chen
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    yea i knew there was a way to do this simper then the u substitution but douldnt figure out what it was

    • one year ago
  9. dumbcow
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    sorry i learned it the hard way and it always stuck with me

    • one year ago
  10. sat_chen
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    its all good but its better in life to take easier route :P

    • one year ago
  11. sat_chen
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    when you can of course

    • one year ago
  12. sat_chen
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    ty again guys

    • one year ago
  13. sat_chen
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    wait a second i thought about it you cant use the u substitution

    • one year ago
  14. sat_chen
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    you only have the 1 trig ffunction at one time so you could have only done that

    • one year ago
  15. sat_chen
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    half angle formula

    • one year ago
  16. dumbcow
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    correct , "u-substitution won't work" i used "integration by parts"

    • one year ago
  17. dumbcow
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    http://en.wikipedia.org/wiki/Integration_by_parts

    • one year ago
  18. sat_chen
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    ah i see i zoned out the dv part yep it would work

    • one year ago
  19. sat_chen
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    and i did integration by parts like 1 week ago

    • one year ago
  20. dumbcow
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    oh ok

    • one year ago
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