Definite integrals

1. 1.
   Evaluate ∫ from 1 to 4 of (8x³ − 4) dx
2. 2.
   Evaluate ∫ from 2 to 5 of (12x² + 4) dx
3. 3.
   Evaluate ∫ from 1 to 4 of (3x² + 3) dx
4. 4.
   Evaluate ∫ from 0 to 2 of (12x³ + 1) dx
5. 5.
   Evaluate ∫ from 0 to 2 of (12x³ + 3) dx
6. 6.
   Evaluate ∫ from 0 to 1 of (9x² + 1) dx
7. 7.
   Evaluate ∫ from 2 to 4 of (9x² − 4) dx
8. 8.
   Evaluate ∫ from 2 to 4 of (9x² − 6) dx
9. 9.
   Evaluate ∫ from 1 to 2 of (16x³ + 5) dx
10. 10.
    Evaluate ∫ from 1 to 2 of (8x − 6) dx
11. 11.
    Evaluate ∫ from 2 to 3 of (12x² − 3) dx
12. 12.
    Evaluate ∫ from 1 to 4 of (4x³ + 4) dx
13. 13.
    Evaluate ∫ from 2 to 3 of (8x³) dx
14. 14.
    Evaluate ∫ from 2 to 4 of (8x³ − 4) dx
15. 15.
    Evaluate ∫ from 1 to 2 of (4x − 3) dx
16. 16.
    Evaluate ∫ from 0 to 3 of (6x² − 2) dx
17. 17.
    Evaluate ∫ from 0 to 3 of (12x³ − 2) dx
18. 18.
    Evaluate ∫ from 0 to 3 of (6x − 6) dx
19. 19.
    Evaluate ∫ from 2 to 4 of (4x³ − 2) dx
20. 20.
    Evaluate ∫ from 0 to 2 of (6x² + 5) dx

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