If `(|a+b|)/(|a-b|)=1`, then the angle between `a` and `b` is

Options

A. `0^(@)`
B. `45^(@)`
C. `90^(@)`
D. `60^(@)`

Explanation

To solve the problem, we start with the given equation:

\[ \frac{|a+b|}{|a-b|} = 1 \]

This implies that:

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