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  3. salina, tamara, and uma are working on their homew

Salina, Tamara, and Uma are working on their homework together. Salina tells her friends that...

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Basic Math

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Salina, Tamara, and Uma are working on their homework together. Salina tells her friends that she has ? = 52 for the inverse cosine problem she is working on and asks if they have the same answer. Tamara says she has ? = 128, and Uma volunteers her answer of ? = 308. Is it possible that these are all solutions to the same problem? Justify your answer.

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