In what book can I find the proof of the identity for factoring a difference of similar powers? (Referring to the identity $x^n-a^n = (x-a) (\ldots)$)

score 33 · Answer 10 · 2026-04-12 01:03:13

33

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Show that for any set A and a relation $R$: $R^{0}=Id_A$

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score 27 · Answer 11 · 2026-04-13 01:41:13

27

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How does the $10^{j+1}-1$ to $10^{j}-1+9\cdot10^j$ conversion work?

Published on 13 Apr 2026 - 1:41

score 79 · Answer 12 · 2026-04-13 15:20:43

79

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Where is the error in this proof using induction?

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score 43 · Answer 13 · 2026-04-24 14:21:28

43

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Induction involving binomial coefficients ${n \choose k}$

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score 97 · Answer 14 · 2026-04-15 18:53:51

97

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Prove $ 3^n>n^2-1 $

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score 87 · Answer 15 · 2026-04-09 21:02:57

87

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How do I write the induction hypothesis when dealing with recursive formulas

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In what book can I find the proof of the identity for factoring a difference of similar powers? (Referring to the identity $x^n-a^n = (x-a) (\ldots)$)

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