MCQOPTIONS
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| 1. |
The lines \[2x=3y=-z\] and \[6x=-y=-4z\] |
| A. | Are perpendicular |
| B. | Are parallel |
| C. | \[intersect\text{ }at\text{ }an\text{ }angle\,\,45{}^\circ \] |
| D. | \[intersect\text{ }at\text{ }an\text{ }angle\,\,60{}^\circ \] |
| Answer» B. Are parallel | |