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JEE Math Practice Question

If Q(0, –1, –3) is the image of the point P in the plane 3x – y + 4z = 2 and R is the point (3, –1, –2), then the area (in sq. units) of $$\Delta $$PQR is :

  1. A.$${{\sqrt {65} } \over 2}$$
  2. B.$$2\sqrt {13} $$
  3. C.$${{\sqrt {91} } \over 2}$$
  4. D.$${{\sqrt {91} } \over 4}$$

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