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प्रश्न
If 13 + 23 + 33 + ... + k3 = 44100 then find 1 + 2 + 3 + ... + k
उत्तर
If 13 + 23 + 33 + … + k3 = 44100
1 + 2 + 3 + … + k = `sqrt(44100)`
= 210
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