Question 7. Using induction prove that 13 + 23 +... + n³ = + u)u for n > 1.

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Q: Example 6.13. Prove that ge + 8 1+ 4 (i) A (ii) 1 + 8°µ? = | 1+ : 2+A 1 1+ 4 (iii) u = 2V(1+ A)

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