Thursday, April 23, 2009

Integration Questios

Integrate the following

1. dy/dx = 5x^3 + 2x^2 + 5

2. dy/dx = 6x + 1

3. dy/dx = 2

4. dy/dx = 8x^5 - 5x^3 + 4x

5. dy/dx = 7x^2 + 3x + 4
at

13 comments:

  1. the best oneApril 24, 2009 at 7:09 AM

    This comment has been removed by the author.

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  2. the best oneApril 24, 2009 at 7:10 AM

    This comment has been removed by the author.

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  3. KenApril 24, 2009 at 8:32 AM

    2. dy/dx = 6x + 1

    intergral 6x + 1 dx


    6x^2/2+ c

    ReplyDelete
  4. KenApril 24, 2009 at 8:33 AM

    3. dy/dx = 2

    intergral 2 = c

    not sure about this could some one correct me if i am wrong

    ReplyDelete
  5. KenApril 24, 2009 at 8:35 AM

    5. dy/dx = 7x^2 + 3x + 4

    intergral 7x^2 + 3x + 4


    = 7/3 x^3 + 3/2 x^2 + c

    ReplyDelete
  6. KenApril 24, 2009 at 8:40 AM

    4. dy/dx = 8x^5 - 5x^3 + 4x


    intergral 8x^5 - 5x^3 + 4x


    = 8x^6 /6+ 5x^4/4 + 4x^2/2 + c

    ReplyDelete
  7. KenApril 24, 2009 at 8:45 AM

    1. dy/dx = 5x^3 + 2x^2 + 5

    intergral 5x^3 + 2x^2 + 5 dx

    5x^4 /4 + 2x ^3/3 + c

    I AM NOT SURE WHAT IF WHAT I AM DOING IS RIGHT

    WHEN U HAVE 5 dx WHAT IS THE INTERGRAL OF IT??/

    ReplyDelete
  8. Swanky ThingApril 24, 2009 at 9:35 AM

    Hey "ken" ur mixing up urself,

    For question 2:
    dy/dx = 6x + 1
    the intergral = 3x^2 + 1x

    ReplyDelete
  9. Fariel MohanApril 24, 2009 at 11:37 AM

    Don't forget when you integrate that you have to include the constant: +C.

    For example, the integral of 3x^2 + 2x is:

    x^3 + x^2 + c

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  10. animechicApril 26, 2009 at 6:02 PM

    correct me if i'm wrong ok:
    when u have to integrate u add the powers and then divide by the sum of those the powers along with that the answer must hace +c

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  11. johnsmithApril 27, 2009 at 8:31 AM

    ammm animechic i think u confuse me more than anything else " no offense" so i really not sure what u mean but if is anything like

    dy/dx = 5x^3 + 3x + 2

    intergral = (5x^4)/4 + (3x^2)/2 + 2x/1 + c

    then i suppose u on the right track

    when integrating add the power by 1 and divide by the new power. and always + c

    ReplyDelete
  12. forzaApril 27, 2009 at 10:02 PM

    #5
    7/3x +3/2x^2+4x+c

    ReplyDelete
  13. Chun-LiApril 28, 2009 at 2:00 AM

    Q1. dy/dx = 5x^3 + 2x^2 + 5

    integral = 5/4 x^4 + 2/3 x^3 +5x +c

    ReplyDelete