... )212 12 3and AB C(, ,), (,,), ( ,,)011 31 0 202− and rrruv w== =(,,) (,,), (,,)120 030 1 23, xyz x yz+−= − +−= 031 0and xyz−=+=−1 3 1122rrruv w, , and rrruvw===(,,); (, ,); (, , ) 235 281 ... lati-tude of (P1, P2, P 3 ) is θ, while their longitudes are (0, 2π /3, –2π /3) , respec-tively. (3) The area of the tetrahedron is the sum of the areas of the fourtriangles (012), (0 23) , ( 031 ), ... 3 3 + 7ê4 and the vector = 2ê1+ 3 2 + ê 3 + 4ê4. We desire to obtain the components of each vector, the projec-tion of over , and the component of orthogonal to .Type, execute, and...