Question

Evaluate the following integrals: a) ſxvx-4d c) ſtanº (4x)sec (4x) dx

Answer 1

Given as sxiz-u da let ce=8-4 = x= ut4 duzdu - scutu). Ja du. = scare thra) der = S(W² + 4531) du | 5 (facelo € 9(23)ox 2 S fear dx 1 Secu, dve z ute du +Suruda substitute back usana (4-4)+ 3 (204) * .

by som sa de Let us for dua ih ada Es-siyang du = -1/3 sin cas du. I sin sus du = -costa) satcos (1) = cos cas COS (2+c. Stan?(42). Sec? (4x) de Let Uzun 삁시 duz dee. estansus. sec" ("2. 13 de -

Stan? (2. tancus. See canda I tancas a sechas - J(?C) -1 ). tance. See (ude Let U= seeds du z sectus tances dv= sec (u2 tanky du. du = 1 4 ((U21). u. du = 1 4 S (W²v) du 21 [ susov-sudu sale in ] so (second section - substi tule back unter + (siems - setan). Thank you