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| 1. |
Write the equation of the plane perpendicular to z-axis and passing through (1,-2,4). |
| Answer» SOLUTION :GIVEN PLANS `2x+4y+z+2=0` and `x-2y+ky+5=0` are PERPENDICULAR to each other `therefore2xx1+4xx(-2)+1xxk=0rArrk=6` | |