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Addin
Sinh 2x=8 coshx
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Answered by
Steve
sinh2x =8coshx
2sinhx coshx - 8coshx = 0
2coshx(sinhx-4) = 0
coshx=0 (no solutions)
sinhx = 4
x = log(4+√17)
http://www.wolframalpha.com/input/?i=sinh2x%3D8coshx
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