Spiegare gentilmente i passaggi.
x = -10 : y= -0.9999092042
x = -11 : y = -0.9999665971
x = -12 : y = -0.9999877116
x = -13 : y = -0.9999954793
x = -14 : y = -0.9999983369
x = -20 : y = -1
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LIM((e^x - 1)/(e^x + 1)) = -1
x---> -∞
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Analogamente l'altro limite.
x = 10 : y = 0.9999092042
x = 11 : y = 0.9999665971
x = 12 : y = 0.9999877116
x = 13 : y = 0.9999954793
x = 14 : y = 0.9999983369
x = 20 : y = 1
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LIM((e^x - 1)/(e^x + 1)) = 1
x---> +∞