Home
Class 11
MATHS
The straight lien x cos theta + y sin t...

The straight lien ` x cos theta + y sin theta = 2 ` will touch the circle ` x^(2) + y^(2) - 2x = 0 ` if

A

`theta = n pi, n in I Q `

B

`A = ( 2 n + 1) pi, n in I`

C

` theta = 2n pi , n in I`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Similar Questions

Explore conceptually related problems

Find (dy/dx) , if x=a cos theta, y=a sin theta

If p and q are respectively the perpendiculars from the origin upon the straight lines, whose equations are x sec theta + y cosec theta = a and x cos theta - y sin theta =a cos 2 theta, then 4p ^(2) + q ^(2) is equal to a) 5a^(2) b) 4a ^(2) c) 3a ^(2) d) 2a ^(2)

The line x cos alpha + y sin alpha = p touches the hyperbola (x ^(2))/( a ^(2)) - (y ^(2))/( b ^(2))= 1 , if :

Find the values of theta and p, if the equation x cos theta + y sin theta = p is the normal form of sqrt 3 x + y + 2 = 0

Find dy/dx if x=2cos^3theta , y=2sin^3theta .

If p and q are the lenghts of the perpendiculars from the origin to the lines x cos theta - y sin theta = k cos 2theta and x sec theta + y cosec theta = k respectively prove that p^2 + 4q^2= k^2