JB King
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3,248
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 14 What is the purpose of the compound angle identity in trigonometry? 7 What is the purpose of defining the notion of inflection point? 6 Arithmetic pattern $1 + 2 = 3$, $4 + 5 + 6 = 7 + 8$, and so on 6 Sequence that converges to 0 but its function diverges 6 I get two different answers on simple equation. What am I doing wrong?

### Reputation (3,248)

 +30 Why when $x^2=y^2$ then $x=y$ doesn't hold sometimes but $x^3=y^3$ then $x=y$ +6 Why does $(-1) \times (-1)$ give +1? +20 Probability with $2$ colored balls and one box: $1/3$ or $1/4$? +10 Name of this specific type of function

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### Tags (100)

 57 algebra-precalculus × 27 15 probability × 14 28 combinatorics × 28 15 real-analysis × 5 22 elementary-number-theory × 15 14 arithmetic × 6 19 trigonometry × 5 12 analysis × 3 18 calculus × 10 11 sequences-and-series × 6

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