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Doctors Medicines MCQs Q&A

  1. $$\frac{{{\text{r}}_1^2 - {\text{r}}_2^2}}{{{{\text{r}}_1} - {{\text{r}}_2}}}$$
  2. $$\frac{{{\text{r}}_1^2 - {\text{r}}_2^2}}{{{{\text{r}}_1} + {{\text{r}}_2}}}$$
  3. $$\frac{{{\text{r}}_1^3 - {\text{r}}_2^3}}{{{\text{r}}_1^2 - {\text{r}}_2^2}}$$
  4. $$\frac{{{\text{r}}_1^3 - {\text{r}}_2^3}}{{{{\text{r}}_1} - {{\text{r}}_2}}}$$
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Answer: Option 3

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