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1. |
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 ΔPQR is: |
A. | 2√13 |
B. | \(\frac{{\sqrt {91} }}{4}\) |
C. | \(\frac{{\sqrt {91} }}{2}\) |
D. | \(\frac{{\sqrt {65} }}{2}\) |
Answer» D. \(\frac{{\sqrt {65} }}{2}\) | |