Problem #2: By making an appropriate substitution, which of the following integrals is equal to [tan $(x) sec 8(x) da ? (A) 28 (1-125 du (B) Ju8 (1-124 du (C) Ju8(1+uf du (D) (12 + 1)tul du (E) [(12 -14 16 du (F) [us (1+ du (G) (12 + 1)Au du (H) (12 - 1)4u) du Problem #2: Select vProblem #6: Consider the partial fraction decomposition of the following, (x - 4)(x - 10)- One of the terms in the partial fraction decomposition is of the form B (x - 10) Find the value of B.Problem #4: By making an appropriate substitution, which of the following integrals is equal to dx x2 (x2 -9)3/2 ? (A) cos*(0) -de (B) cos-( 0) since de (c) cos (@) cos*(@) 3* since de (D) de (E) - cos (@) 3# sin3(8) 3 since de (F) cos (@) 3- sin-(e) 3* sin-(e) de (G) cost(8) 3' sin (@) -de (H) cost(@) 34 sin (e) de Problem #4: Select v