1. =x²/2|от -1до +1|=1²/2-(-1)²/2= 0
2. =(х²+3х)|от 1 до 2|= (2²+3*2) - (1+3)=6
3. =х³/3|от 0 до 2|=(8/3)-(0)=2 2/3
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1. =x²/2|от -1до +1|=1²/2-(-1)²/2= 0
2. =(х²+3х)|от 1 до 2|= (2²+3*2) - (1+3)=6
3. =х³/3|от 0 до 2|=(8/3)-(0)=2 2/3