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To determine the true bearing of \( B \) from \( A \), we’ll analyze the information given:

1. **Figure Analysis**: 
   - \( \angle NAB = 50^\circ \) (bearing of \( B \) from \( A \) relative to north).
   - \( \angle ABC = 103^\circ \).
   - \( \angle BCA = 48^\circ \).

2. **True Bearing of \( B \) from \( A \)**: 
   - The true bearing is the angle measured clockwise from the north line at \( A \).
   - Here, the bearing is already provided directly as \( 50^\circ \).

Thus, the answer to question 7 (the true bearing of \( B \) from \( A \)) is:
**50 degrees**.

Would you like more details or have any further questions?

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### Related Questions:
1. What is the bearing of \( A \) from \( B \) based on the given information?
2. How can we calculate the bearing of \( C \) from \( B \) using trigonometric rules?
3. What trigonometric rules apply to finding bearings in non-right triangles?
4. Can the true bearing of \( C \) from \( A \) be determined with the given angles?
5. How would the bearing change if \( \angle NAB \) were increased?

### Tip:
When solving for bearings, always measure clockwise from north and check if you can directly use given angles without needing extra calculations.

From the figure, determine the true bearing of B from A.

Solve a trigonometry problem involving bearings to determine the true bearing of point B from point A. The solution covers angle relationships and the sum of angles in a triangle. Ideal for Grade 11 students studying trigonometry.

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