Five marks exercise problems IV — task. Mathematics State Board, Class 10.

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Find the sum of the series \((2^3 - 1) + (4^3 - 3^3) + (6^3 - 5^3) + … \) to:

(i) \(n\) terms \(=\)

i i^{i} + i i^{i}

(ii) \(8\) terms \(=\)

[Note: Insert variables and numbers in separate boxes]

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25. Five marks exercise problems IV