Answers

2016-03-17T14:03:55+05:30
A = 3i+2j+k
b = i+2j+4k
c = 4i+3k
d = i+j+7k
AB = b-a = -2i+3k
AC = c-a = i-2j+2k
AD = d-a = -2i-j+6k
volume =1/6[AB AC AD] = 1/6 det(AB AC AD)
             =  1/6(5)
              = 5/6 units³
1 4 1
then rate it man
Sorry I'm not man
You can call me little sister
Because I'm younger than u
okay sis..!!