Two marks exercise problems VIII — task. Mathematics State Board, Class 10.

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If

$1 + 2 + 3 + ... + k$

$=$ 325, then find

$1^{3} + 2^{3} + 3^{3} + ... + k^{3}$ .

Answer:

$1^{3} + 2^{3} + 3^{3} + ... + k^{3}$

$=$ .

$1$

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