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Original Khojo Papers practice question — not from a past board paper.
Answer
l = m = n = ±1/√3
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Since l = m = n and l2 + m2 + n2 = 1, we get 3l2 = 1, so l = ±1/√3.
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