intsubprac - Use substitution to find the following...

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Unformatted text preview: Use substitution to find the following integrals: 1. √ 2x x2 + 3 dx 2. 5 cos(3x) dx 4. e2x+3 dx 5. xe−x 7. 3 dx x+4 8. 1 dx 5−x √ 10. 13. 4 − x dx sin( 3 16. π 3π x + ) dx 2 4 √ x x2 + 1 dx √ 0 2x dx 4x2 + 3 x + 3 dx 12. √ (x2 − 2) x3 − 3x2 + 3 dx 14. cos(2x − 1) dx 15. √ (4x − 3) 2x2 − 3x + 2 dx √ x2 x3 + 2 dx 18. 2 17. 3 2 5 2 2 ln 4 sin2 x cos x dx 23. −π/6 2x + 3 dx (x2 + 3x)3 ln 7 (x − 2)e−1/2(x−2) dx 21. 20. π /6 sin x cos x dx √ 9. √ x x2 − 1 dx π /3 0 x+2 dx x2 + 4x 1 2 22. 6. dx 7x2 sin(4x3 ) dx 11. 0 19. 2 /2 3. ex dx (ex − 3)2 ...
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