MCQOPTIONS
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MCQOPTIONS
| 1. |
What is \(\cos \left( {\frac{{\rm{\theta }}}{2}} \right)\) equal to? |
| A. | \(\frac{{\left| {{\rm{\hat a}} - {\rm{\hat b}}} \right|}}{2}\) |
| B. | \(\frac{{\left| {{\rm{\hat a}} + {\rm{\hat b}}} \right|}}{2}\) |
| C. | \(\frac{{\left| {{\rm{\hat a}} - {\rm{\hat b}}} \right|}}{4}\) |
| D. | \(\frac{{\left| {{\rm{\hat a}} + {\rm{\hat b}}} \right|}}{4}\) |
| Answer» C. \(\frac{{\left| {{\rm{\hat a}} - {\rm{\hat b}}} \right|}}{4}\) | |