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If circum-radius and in-radius of a tria...

If circum-radius and in-radius of a triangle ABC be 10 and 3 units respectively , then a cot A +b cot B +c cot C is equal to

A

13

B

26

C

39

D

none of these

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AI Generated Solution

To solve the problem, we need to find the value of \( a \cot A + b \cot B + c \cot C \) given that the circumradius \( R \) is 10 units and the inradius \( r \) is 3 units. ### Step-by-Step Solution: 1. **Identify the Given Values:** - Circumradius \( R = 10 \) - Inradius \( r = 3 \) ...
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