AP EAMCET · Maths · Properties of Triangles
In a \(\triangle A B C\), if \(\frac{2 r_2 r_3}{r_2-r_1}=r_3-r_1\), then \(\frac{r_1\left(r_2+r_3\right)}{\sqrt{r_1 r_2+r_2 r_3+r_3 r_1}}=\)
- A \(\frac{a^2+b^2+c^2}{\Delta^2}\)
- B \(b-c\)
- C \(\frac{1}{2 R}\)
- D 2R
Answer & Solution
Correct Answer
(D) 2R
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