Question 1082218
{{{int((2x-x^2+(1/3)x),dx)=x^2-x^3/3+(1/6)x^2+C}}}
{{{int((2x-x^2+(1/3)x),dx)=-x^3/3+(7/6)x^2+C}}}
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{{{int((2/e^t-cos(t)),dt)=int((2e^(-t)-cos(t)),dt)}}}
{{{int((2/e^t-cos(t)),dt)=-2e^(-t)-sin(t)+C}}}