Integrate : 1 / 3 -2x - x^2

Answers (1)

Solution:  

             I=int frac13-2x-x^2dx=int frac12^2-(x+1)^2dx

  Rightarrow               I= frac12(2)log (frac2+(x+1)2-(x+1))=frac14 log frac3+x1-x+c

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