Evaluate the following integral using trigonometric substitution. 7 - - dx - 1 1+ x2 13 What substitution will be the most helpful for evaluating this integral? O A. x = sin 0 O B. x= sec0 C. x = tan 0 Rewrite the given integral using this substitution. 7 dx = x2 1 1+x2 13 (Simplify your answers. Type exact answers.)Evaluate the following integral using trigonometric substitution. dt 12 1/4-12 . . . What substitution will be the most helpful for evaluating this integral? A. t= 2 sin 0 O B. t= 2 sec0 O C. t= 2 tan 0 Rewrite the given integral using this substitution. dt de 12 1/ 4-12 (Simplify your answers. Type exact answers.)Evaluate the following integral using trigonometric substitution. What substitution will be the most helpful for evaluating this integral? V x=4sec8 x=4n8 x=4tanl Rewrite the given integral using this substitution. if"? =l (D) de (Simplify your answers. Type exact answers.) Evaluate the following integral using trigonometric substitution. I; E (81 +x2) 2 What substitution will be the most helpful for evaluating this integral? V x=9tan8 x=95ec9 x=9n8 Rewrite the given integral using this substitution. [Lime 3 2 (81 + x2) (Type an exact answer.) Evaluate the following integral using trigonometric substitution. 345 dx 2 0 36X What substitution will be the most helpful for evaluating this integral? x=6tan0 V x=6sin8 x=65ec6 Rewrite the given integral using this substitution. 345 2 D I ll: I (D) de 0 0 (Simplify your answers. Type exact answers.) What change of variables is suggested by an integral containing J256 - x2 ? Choose the correct answer below. 1:: j:- A. X: 256 sec n:j_j:- B. x = 256 sin 6 {j j) C. x=165ec8 1:: j:- D. x=165in6 What change of variables is suggested by an integral containing 4x2 + 361 ? Choose the correct answer below. {:3 A. X: 361 sin 6 {3:- B. x=195in6 {:3 C. x=19tan6 {:3 D. X: 361 tan 6 What change of variables is suggested by an integral containing 1x 2 -289? . . . Choose the correct answer below. O A. x = 17 sec 0 O B. x = 289 tan 0 O C. x = 289 sec 0 O D. x = 17 tan 0