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AP EAMCET · Maths · Properties of Triangles

In \(\triangle \mathrm{ABC}\), if \(\angle \mathrm{C}=90^{\circ}\), then \(\left(\frac{\mathrm{r}_1-\mathrm{r}_3}{\mathrm{r}_1}\right)\left(\frac{\mathrm{r}_2-\mathrm{r}_3}{\mathrm{r}_2}\right)=\)

  1. A \(1\)
  2. B \(3\)
  3. C \(4\)
  4. D \(2\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(2\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & \text {} \because \angle C=90^{\circ} \Rightarrow C^2=a^2+b^2 \\ & \text { Now, }\left(\frac{r_1-r_3}{r_1}\right)\left(\frac{r_2-r_3}{r_2}\right)=\frac{\frac{\Delta}{s-a}-\frac{\Delta}{s-c}}{\frac{\Delta}{s-a}} \cdot…