thankful

  1. M

    Volume of the parallelipipel (Please help will be very thankful)

    1.Find the volume of the parallelipipel with sides PQ PR and PS P <1,3,4> , R <2,1,6> Q <3,5,3> S <2,2,5> 2. Find the area determined by PQ and PR 3. Find the unit vector orthogonal to PQ and PR.(Wait)