A.U1=-5 r=3 U7=/ b.U1=4 r -2 U8 By Admin ReiPosted on December 2, 2022 A.U1=-5 r=3 U7=/ b.U1=4 r -2 U8 A.U1=-5 r=3 U7= ar"6 = (-5) (3"6) =(-5)(729)= -3645