Use reduction formulas to evaluate the integrals in Exercises 41–50. Ssin' 2 de 8 cos“ 2nt dt 42. 41. 2 sin? t sec“ t dt sin? 20 cos³ 20 do 44. 43. 8 cot* t dt 4 tan³ 2x dx 45. 46. 2 sec³ Tx dx 3 sec“ 3x dx 47. 48. 16x°(ln x)² dx csc³ x dx 49. 50.

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