Are the following sets equal? \( A=\{x: x \) is a letter in the word reap \( \}, B=\{x: x \) is ...

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Are the following sets equal?
\( A=\{x: x \) is a letter in the word reap \( \}, B=\{x: x \) is a letter in the word paper \( \} \), \( C=\{x: x \) is a letter in the word rope \( \} \)
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