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**Z-transform involving the unit step function**

### Z-transform involving the unit step function

**Latex Code**:

**MathML Code**:

${n}^{3}u(n)\iff \backslash fracz({z}^{2}+4z+1){(z-1)}^{4},\left|z\right|>1$ |

**MathType 5.0**: