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Mathematics
Problem
Evaluate the following integrals. The answers are in Chapter 23, starting on page 545. 8.
∫
e
x
+
e
−
x
e
x
−
e
−
x
d
x
\int \frac{e^{x}+e^{-x}}{e^{x}-e^{-x}} d x
∫
e
x
−
e
−
x
e
x
+
e
−
x
d
x
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