如图所示,AC⊥BC,C为垂足,CD⊥AB,D为垂足,BC=8,CD=4.8,BD=6.4,AD=3.6,AC=6,则点C到AB的距离是________,点A到BC的距离是________,点A到CD的距离是________,A、B两点间的距离是________.
(-1)2n =______;(-1)2n+1 =________;
(-0.1)3=_______;
(-5) 2 =________;
(-3)3 =__________;
(-1)9=_____;