Problem

Evaluate. (Assume x>0.) Check by differentiating.
x12lnxdx
x12lnxdx=

Answer

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Answer

Final Answer: The integral of x12lnxdx is x13lnx13x13169.

Steps

Step 1 :Identify the parts of the integral that will be 'u' and 'dv'. In this case, let 'u' be lnx and 'dv' be x12dx.

Step 2 :Find 'du' and 'v'. 'du' is the derivative of 'u' and 'v' is the integral of 'dv'. So, 'du' is 1x and 'v' is x1313.

Step 3 :Apply the formula for integration by parts, udv=uvvdu. This gives us x13lnx13x13169.

Step 4 :Check the result by differentiating it and see if we get back the original integrand. The derivative of x13lnx13x13169 is x12lnx, which is the original integrand.

Step 5 :Final Answer: The integral of x12lnxdx is x13lnx13x13169.

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