# Answer to Question #6557 in Trigonometry for anil jha

Question #6557

In a triangle ABC,if r1 is the exradius of the excircle opposite to A,r2 is the exradius of the excircle opposite to B and r3is the exradius of the excircle opposite to C....

prove that (ar1+br2+cr3)/abc=(1/r)-(1/2R)

where r is the inradius and R is the circum radius.

prove that (ar1+br2+cr3)/abc=(1/r)-(1/2R)

where r is the inradius and R is the circum radius.

Expert's answer

#### Not answered

Need a fast expert's response?

Submit orderand get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

## Comments

## Leave a comment