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Mike M

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  • Calculus Help! Trigonometric Substitution.?

    Integral of (-3) / (y^2 + 4y +5)

    you have to complete the square on the denominator (I think!).

    I am getting 3arccot(y+2) + C and when tried a different way I get 3arccsc(sqrt((y+2)^2+1).

    Please help! I would really like to know what I am doing wrong...

    As always the best answer will be rewarded the 10pts.

    Thanks!

    1 AnswerMathematics1 decade ago

  • Integration by Parts?

    How do I solve this?

    [2,4]integral(x^2)(lnx)dx

    I used the integration by parts formula but am getting

    [(1/3)(4)ln(4) - (1/3)(2)ln(2)] - [1/9(4^3-2^3)]

    Any help would be GREATLY appreciated!!!

    Thanks!!

    1 AnswerMathematics1 decade ago

  • Should I get the Apple Protection Plan for my iPhone?

    I just bought a "Refurbished" iPhone that comes with a 90 day warranty. The APP extends this warranty out one year to include technical support/defect replacement, not damage. It is $70 is this worth it? Please explain!!! Earn those two points! =)

    3 AnswersCell Phones & Plans1 decade ago

  • Should I get the Apple Protection Plan for my iPhone?

    I just bought a "Refurbished" iPhone that comes with a 90 day warranty. The APP extends this warranty out one year to include technical support/defect repleacement, not damage. It is $70 is this worth it?

    6 AnswersCell Phones & Plans1 decade ago