Q.If the planes 1 1 1 1 a x b y c z d 0 + + + = + + + = + + + = + + + = and 2 2 2 2 a x b y c z d 0 + + + = + + + = + + + = + + + = are perpendicular to each other, then
Correct answer: 1 2 1 2 1 2 a a b b c c 0 + + =
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Question #49,872
Math Chapter Wise question with answer
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