Solve step by step.
2 1: 3rsec² (2x² - 1) dx dx 4x - 3 :)dx sin³ (32) da d) J sin (x) cos5 (x) dx 20 Dat Wikime e) / (x² - 2x + 3) In (a) da f) r²arctan (x) dx 8) b) J c)