In triangle `A B C ,` if `cosA+cosB+cosC=7/4, t h e n R/r` is equal to `3/4` (b) `4/3` (c) `2/3` (d) `3/2`

Explanation

To solve the problem, we need to find the ratio \( \frac{R}{r} \) in triangle \( ABC \) given that \( \cos A + \cos B + \cos C = \frac{7}{4} \).

### Step-by-Step Solution:

1. **Start with the given equation**:
\[ \cos A + \cos B + \cos C = \frac{7}{4} \]
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