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1. |
If θ is the slope of the ground and l is the measured distance, the correction is |
A. | 2l sin² θ/2 |
B. | 2l cos² θ/2 |
C. | 2l tan² θ/2 |
D. | 2l cot² θ/2. |
Answer» B. 2l cos² θ/2 | |