જે રેખા $\frac{x-7}{2}=\frac{y+17}{-3}=\frac{z-6}{1}$ અને $\frac{x+5}{1}=\frac{y+3}{2}=\frac{z-6}{-2}$ ને લંબ હોય,તેના દિક્કોસાઇન શોધો.

• A
  $\pm \frac{3}{\sqrt{50}}, \pm \frac{4}{\sqrt{50}}, \pm \frac{5}{\sqrt{50}}$
• B
  $\pm \frac{4}{\sqrt{90}}, \pm \frac{5}{\sqrt{90}}, \pm \frac{7}{\sqrt{90}}$
• C
  $\pm \frac{4}{\sqrt{29}}, \pm \frac{3}{\sqrt{29}}, \pm \frac{2}{\sqrt{29}}$
• D
  $\pm \frac{1}{\sqrt{26}}, \pm \frac{3}{\sqrt{26}}, \pm \frac{4}{\sqrt{26}}$