∫ upper 2 lower 1 [(xex power - 2 + 3x & # 179;) / x] DX; ∫ upper 3 lower 1 | 2-x | DX; ∫ upper 1 lower 0 (X & # 178; - ex power + 2sinx) DX

1. The original formula = ∫ (1 → 2) e ^ xdx-2 ∫ (1 → 2) DX / x + ∫ (1 → 2) 3x ^ 2DX
=e^x|(1→2)-2ln|x||(1→2)+x^3|(1→2)
=e^2-e-2ln2+7
2. The original formula = ∫ (0 → 1) x ^ 2DX - ∫ (0 → 1) e ^ xdx + 2 ∫ (0 → 1) sinxdx
=x^3/3|(0→1)-e^x|(0→1)-2cosx|(0→1)
=1/3-e+1-2cos1+2
=10/3-e-2cos1

∫ upper 2 lower 1 [(xex power - 2 + 3x & # 179;) / x] DX; ∫ upper 3 lower 1 | 2-x | DX; ∫ upper 1 lower 0 (X & # 178; - ex power + 2sinx) DX

∫ upper 2 lower 1 [(xex power - 2 + 3x & # 179;) / x] DX; ∫ upper 3 lower 1 | 2-x | DX; ∫ upper 1 lower 0 (X & # 178; - ex power + 2sinx) DX

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