ABCD is a Parallelogram in which AB vector=(3,-6,3 ) AD vector =(6,6,3) .P is a point on AB such that AP:PB=1:2 And Q is a point on BC such that BQ:QC=2:1.Find angle between DQ and PC.
ABCD is a Parallelogram in which AB vector=(3,-6,3 ) AD vector =(6,6,3) .P is a point on AB such that AP:PB=1:2 And Q is a point on BC such that BQ:QC=2:1.Find angle between DQ and PC.











