Q.

The equation of set of lines which are at a constant distance of 2 units from the origin andαis angle made by perpendicular from origin is

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

x+y+2=0

b

x+y+4=0

c

xcosα+ysinα=2

d

xcosα+ysinα=12

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

If normal to the line makes an  angle α with x-axis, then equation of line isxcosα+ysinα=p, where p is distance of line form origin.Here, p=2So,  the equation of line is xcosα+ysinα=2.
Watch 3-min video & get full concept clarity
score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon
The equation of set of lines which are at a constant distance of 2 units from the origin andαis angle made by perpendicular from origin is