... khang: Zp = — = A i =2, 2^/2cos 10 07tt + C i = 2, 2 cos 10 07lt + (A) (A) B i = 2, 2cos l O O T l t - - ^ - — r = 10 0 Q Tong tro: Z = = ^10 0^+ (20 0 -10 0)^ ^ 10 0 720 (A) D i = 2, 2 ^2 cos lOOTtt-4j (A) ... = - To'ng tro : Z = «.C 1- 4 IOOTI 10 27 : + (Z^ -Z^f = 20 0Q = JlOO^ + (10 0 - 20 0)^ = \m42Q , , Un 22 OV2 = 2, 2A - Cuong dong dien cue dai: Ig = - - IO0V2 Z, - Z p 10 0 - 20 0 , n DQlgchpha: tancp= ... thuc la A i2=2V2cos (10 07rt + 57t / 12 )(A) =—.Z B i2 = ^ c o s ( 0 t t + t / ) ( A ) C i2=2V3cos (10 07rt + 57r / 12 )(A) H i ? u d i ^ n the tuc t h o i hai dau mach : u = i.Z D i2 = 2^ /3cos (10 07tt +...