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Find arcosh(5/3) in exact form.
Aln(8/3)
Bln 3
Cln 4
Dln 2
Answer & Solution
Correct answer: B. ln 3
arcosh(5/3) = ln(5/3 + √(25/9 - 1)) = ln(5/3 + 4/3) = ln 3.
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