Two systems of rectan... - Three Dimensional Geometry

Q.) Two systems of rectangular axes have the same origin. If a plane cuts them at distance a, b, c and a', b', c' from the origin, then

[A]1/a² + 1/b² + 1/c² + 1/a'² + 1/b'² + 1/c'² = 0

[B]1/a² - 1/b² - 1/c² + 1/a'² - 1/b'² - 1/c'² = 0

[C]1/a² + 1/b² + 1/c² = 1/a'² + 1/b'² + 1/c'²

[D]1/a² + 1/b² +1/c² + 1/a'² + 1/b'² + 1/c'² = 0

Three Dimensional Geometry 📚

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