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  • 08-02-2024
  • Mathematics
contestada

The lines x - 2/1 = y - 3/1 = z - 4/-k and = x - 1/k = y - 4/2 = z - 5/1 are coplanar, if

a. k = o or -1
b. k = o or -3
c. k = o or 1
d. k = 3 or -3

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