Write the equation for the plane.The plane through the points P(5, -5, 1) , Q(-3, -6, 64) and R(-1, 2, -6).
A. 7x + 7y + z = -1
B. 7x + y + 7z = 1
C. 7x + 7y + z = 1
D. 7x + y + 7z = -1
Answer: C
Mathematics
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