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KnightRider

  • 5 years ago

x^2 cos(xy) integrate?

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  1. anonymous
    • 5 years ago
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    with respect to what x or y

  2. anonymous
    • 5 years ago
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    You can to integration by parts, however I prefer the Tabular Method: let u = x^2 v= cos(x) (until 0 is obtained) Alternating Signs U and its derivatives V and its antiderivatives + x^2 cos(x) - 2x sin(x) + 2 - cos(x) - 0 - sin (x) Now multiply diagonal terms and add: int. (x^2cos(x) = + x^2sin(x) + 2xcos(x) - 2sin(x) + C The Tabular Method can also be used for a few other integration problems. Try looking it up

  3. knightrider
    • 5 years ago
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    with respect to y

  4. anonymous
    • 5 years ago
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    nm i didnt see the xy*

  5. anonymous
    • 5 years ago
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    \[xsin(xy)\]

  6. knightrider
    • 5 years ago
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    how did u find it?

  7. anonymous
    • 5 years ago
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    treat x as a constant (for example pretend it is a 2) use then use u substitution

  8. anonymous
    • 5 years ago
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    do you understand

  9. knightrider
    • 5 years ago
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    yeah i got u thnx alot

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