# Chapter 6 - Section 6.1 - Rational Functions and Multiplying and Dividing Rational Expressions - Exercise Set: 3

The domain is all real numbers except $t\ne0$.

#### Work Step by Step

Any restriction on domain will occur when a value of $t$ creates a zero in the denominator. If $t=0$ and the value $0$ is substituted into the expression in the denominator, you will have a $0$ in the denominator and an undefined fraction. The domain is all real numbers except $t\ne0$.

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