Find all real values of $r$ that satisfy $\frac1r > \frac1{r-1} + \frac1{r-4}.$ (Give your answer in interval notation.)
Question:
Find all real values of $r$ that satisfy $\frac1r > \frac1{r-1} + \frac1{r-4}.$ (Give your answer in interval notation.)
Answer:
Let's think step by step.

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(-\infty, -2) \cup (0, 1) \cup (2, 4)
Find all real values of $r$ that satisfy $\frac1r > \frac1{r-1} + \frac1{r-4}.$ (Give your answer in interval notation.)
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