If the straight line (x-x_0)/l = (y-y_0)/m = (z-z_0)/n is parallel to the plane ax + by + cz + d = 0, then which

### Question Asked by a Student from EXXAMM.com Team

Q 2369134015.     If the straight line (x-x_0)/l = (y-y_0)/m = (z-z_0)/n is

parallel to the plane ax + by + cz + d = 0, then
which one of the following is correct?
NDA 2013 Paper 1
A

I + m + n = 0

B

a + b + c = 0

C

a/l + b/m +c/n =0

D

al + bm + cn = 0

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

#### Access free resources including

• 100% free video lectures with detailed notes and examples
• Previous Year Papers
• Mock Tests
• Practices question categorized in topics and 4 levels with detailed solutions
• Syllabus & Pattern Analysis