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Evaluate:`int1/(x^2-x+1)dx` |
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Answer» `int(1)/(x^(2)-x+1)dx` `=int(1)/((x-1//2)^(2)+3//4)dx` `=int(1)/((x-1//2)^(2)+(sqrt(3)//2)^(2))dx` `=(1)/(sqrt(3)//2)tan^(-1)((x-1//2)/(sqrt(3)//2))+C` `=(2)/(sqrt(3))tan^(-1)((2x-1)/(sqrt(3)))+C` |
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