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प्रश्न
Choose the correct alternative:
If the distance of the point (1, 1, 1) from the origin is half of its distance from the plane x + y + z + k = 0, then the values of k are
विकल्प
± 3
± 6
– 3, 9
3, – 9
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उत्तर
3, – 9
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