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10 questions from this quiz
12(ex−e−x)\frac{1}{2}(e^x - e^{-x})21(ex−e−x)
ln(x+x2−1)\ln(x + \sqrt{x^2 - 1})ln(x+x2−1)
x≥1x \geq 1x≥1
cosh2x−sinh2x≡1\cosh^2 x - \sinh^2 x \equiv 1cosh2x−sinh2x≡1
1coshx\frac{1}{\cosh x}coshx1
x=0x = 0x=0
2sinhxcoshx2\sinh x \cosh x2sinhxcoshx
111
−1<f(x)<1-1 < f(x) < 1−1<f(x)<1
1−tanh2x≡sech2x1 - \tanh^2 x \equiv \text{sech}^2 x1−tanh2x≡sech2x
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