1.

Find the z – transform of cosh(nθ)

A. \(\frac{{z\left( {z - cosh\theta } \right)}}{{\left( {{z^2} - 2z\;cosh\theta + 1} \right)}}\)
B. \(\frac{{z\left( {z - \cos h\theta } \right)}}{{\left( {{z^2}02z\cos h\theta } \right)}}\)
C. \(\frac{{\left( {z - cosh\theta } \right)}}{{\left( {{z^2} - 2x\;cosh\theta + 1} \right)}}\)
D. \(\frac{{z\left( {z - coth\theta } \right)}}{{\left( {{z^2} - 2zcoth\theta + 1} \right)}}\)
Answer» B. \(\frac{{z\left( {z - \cos h\theta } \right)}}{{\left( {{z^2}02z\cos h\theta } \right)}}\)


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