MCQOPTIONS
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MCQOPTIONS
| 1. |
Formula for direct cosine l=cos = ______ |
| A. | x<sub>2</sub>-x<sub>1</sub> |
| B. | ( frac{x_2}{l_e} ) |
| C. | ( frac{x_1}{l_e} ) |
| D. | ( frac{x_2-x_1}{l_e} ) |
| Answer» E. | |