UPSC NDA II 2011 Mathematics Paper
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Question : 80 of 120
Marks:
+1,
-0
What is the equation of the plane passing through the point ( 1 , − 1 , − 1 ) and perpendicular to each of the planes x − 2 y − 8 z = 0 and 2 x + 5 y − z = 0 ?
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