A boat moves relative to water with a velocity `v` which is `n` times less than the river flow velocity `u`. At what angle to the stream direction must the boat move to minimize drifting ?

Explanation

To solve the problem of determining the angle at which a boat must move relative to the river flow to minimize drifting, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Given Information**:
- The velocity of the boat relative to the water is \( v \).
- The river flow velocity is \( u \).
- It is given that \( v \) is \( n \) times less than \( u \), which can be expressed as:
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