If one of the lines represented by ax^2+2hxy+by^2=0 is perpendicular to mx+ny=18 then

MHT CET 2024 Mathematics question

If one of the lines represented by is perpendicular to then

(A)
(B)Correct
(C)
(D)

Answer: (B)

Solution

The line has normal direction , so a line through the origin perpendicular to it has direction , i.e. the line , or . This line belongs to the pair , so substitute : $+2h nm +b=0⇒

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-095517