The hyperbolic cosine function, denoted cosh x, is used to model the shape of a hanging cable (a telephone wire, for example). It is defined as cosh x = e^x + e^-x / 2.
a. Determine its end behavior by evlauating the limit of cosh x from x from positive inifinity and the limit of cosh x from x from negative inifnity.
b. Evaluate cosh 0.
cosh 0 =
Use symmetry and part (a) to sketch a plausible graph for y = cosh x.
Tyhe given function is cosh(x).
First, evaluate the limit of cosh x from x from positive inifinity and then the limit of cosh x from x from negative inifnity.
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