In a `DeltaABC, b cos^(2) (C/2) + c cos^(2) (B/2)` is equal to

Options

A. s
B. 2s
C. s/2
D. none of these

Explanation

To solve the problem of finding the value of \( b \cos^2\left(\frac{C}{2}\right) + c \cos^2\left(\frac{B}{2}\right) \) in triangle \( ABC \), we can follow these steps:

### Step-by-step Solution:

1. **Write the Given Expression**:
We start with the expression:
\[
b \cos^2\left(\frac{C}{2}\right) + c \cos^2\left(\frac{B}{2}\right)
...