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| 1. |
The angle at which the normal vector to the plane `4x+8y+z=5` inclined to the Z-axis isA. `"cos"^(-1)((8)/(9))`B. `"cos"^(-1)((1)/(9))`C. `"cos"^(-1)((2)/(9))`D. `"cos"^(-1)((4)/(9))` |
| Answer» Correct Answer - B | |