Question:medium

Plane through (3,5,7), (7,-5,3) parallel to line joining (1,-2,-4) and (4,2,-1) is \(ax+by+cz+80=0\). Then \(a+b+c=\)

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Plane problems: always use cross product of direction vectors.

Updated On: Jun 22, 2026

-2
3
7
-4 \bigskip

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The Correct Option is D

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