If the line,

Question:

If the line, $\frac{\mathrm{x}-3}{2}=\frac{\mathrm{y}+2}{-1}=\frac{\mathrm{z}+4}{3}$ lies in the plane, $\mathrm{xx}+\mathrm{my}-\mathrm{z}=9$, then $\mathrm{l}^{2}+\mathrm{m}^{2}$ is equal to :-

  1. 2

  2. 26

  3. 18

  4. 5


Correct Option: 1

Solution:

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