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KnightRider
 5 years ago
x^2 cos(xy) integrate?
KnightRider
 5 years ago
x^2 cos(xy) integrate?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0with respect to what x or y

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0You 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

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0nm i didnt see the xy*

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0treat x as a constant (for example pretend it is a 2) use then use u substitution

knightrider
 5 years ago
Best ResponseYou've already chosen the best response.0yeah i got u thnx alot
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