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1)S=intlimits^2_1 {(x^2-0)} , dx =(frac{x^3}{3} )|_1^2=frac{8}{3}- frac{1}{3}= 2frac{1}{3}e^2\2)S=intlimits^2_{-1} {(x^2-0)} , dx =(frac{x^3}{3} )|_{-1}^2=frac{8}{3}+ frac{1}{3}= 3e^2\3)S=intlimits^2_1 {(2x^2-1-0)} , dx =(frac{2x^3}{3}-x )|_1^2=frac{10}{3}+ frac{1}{3}= 3frac{2}{3}e^2\4)S=intlimits^3_2 {2x^2+1} , dx =(frac{2x^3}{3}+x )|_2^3=21-7frac{1}{3}= 13frac{2}{3}e^2

e^2 -квадратные единицы

S -площадь

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