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value of the expression (b-c)/(r(1))+(c-...

value of the expression `(b-c)/(r_(1))+(c-a)/r_(2)+(a-b)/r_(3)` is equal to

A

1

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2

C

3

D

0

Text Solution

AI Generated Solution

To find the value of the expression \[ \frac{b - c}{r_1} + \frac{c - a}{r_2} + \frac{a - b}{r_3} \] we start by recalling the definitions of \( r_1 \), \( r_2 \), and \( r_3 \) in terms of the area \( \Delta \) of the triangle and the semi-perimeter \( s \): ...
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