What Is The Integral Of X(7-x^2)dx?

Anonymous

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What is the integral of x(7-x^2)dx?

 

Answer No.1

Anonymous

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Tegral of x(7-x^2)dx? let 7 - x^2 = t -2x dx = dt x dx = -dt/2 integral will be t^2 -dt/2 = -t^3/6 +C = -(7-x^2)^3/ 6 + C

Answer No.2

Anonymous

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7-x^2 = t xdx = -dt/2 so now int( -tdt/2) = -t^2/2 + c = -(1/2) (7- x^2)2/2 + c

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