Home
Class 12
MATHS
In the diagram as shown, a circle is dra...


In the diagram as shown, a circle is drawn with centre `C(1,1)` and radius 1 and a line L. The line L is tangent to the circle at Q. Further L meets the y-axis at R and the x-axis at P in such a way that the angle OPQ equals `theta` where `0 lt theta lt (pi)/(2)`.
Area of triangle OPR when `theta = pi//4` is

A

`(1+ cos theta, 1 +sin theta)`

B

`(sin theta, cos theta)`

C

`(1+ sin theta, cos theta)`

D

`(1+sin theta, 1+ cos theta)`

Text Solution

Verified by Experts

The correct Answer is:
D


For the circle with center C, using parametric form at straight line, we get
`x - 1 = sin theta`
`y -1 = cos theta`
Thus, `Q -= (1+sintheta, 1 +cos theta)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • CIRCLES

    CENGAGE ENGLISH|Exercise Multiple Correct Answers Type|9 Videos
  • CIRCLE

    CENGAGE ENGLISH|Exercise MATRIX MATCH TYPE|7 Videos
  • COMPLEX NUMBERS

    CENGAGE ENGLISH|Exercise MATRIX MATCH TYPE|9 Videos

Similar Questions

Explore conceptually related problems

In the diagram as shown, a circle is drawn with centre C(1,1) and radius 1 and a line L. The line L is tangent to the circle at Q. Further L meets the y-axis at R and the x-axis at P in such a way that the angle OPQ equals theta where 0 lt theta lt (pi)/(2) . Equation of the line PR is

If cos theta - sin theta = (1)/(5) , where 0 lt theta lt (pi)/(4) , then

If |z-i|=1 and arg (z) =theta where 0 lt theta lt pi/2 , then cottheta-2/z equals

A line is drawn through the point (1, 2) to meet the coordinate axes at P and Q such that it forms a triangle OPQ, where O is the origin. If the area of the triangle OPQ is least, then the slope of the line PQ is

Tangents drawn to circle (x-1)^2 +(y -1)^2= 5 at point P meets the line 2x +y+ 6= 0 at Q on the x axis. Length PQ is equal to

Consider with circle S: x^2+y^2-4x-1=0 and the line L: y=3x-1 . If the line L cuts the circle at A and B then Length of the chord AB is

The line 2x - y + 1 = 0 is tangent to the circle at the point (2,5) and the centre of the circles lies on x-2y = 4. The radius of the circle is :

If a line, y = mx + c is a tangent to the circle, (x-1)^2 + y^2 =1 and it is perpendicular to a line L_1 , where L_1 is the tangent to the circle x^2 + y^2 = 8 at the point (2, 2), then :

if the tangent to the curve x=a(theta+sintheta) , y=a(1+costheta) at theta=pi/3 makes an angle alpha x=axis then alpha

To the circle x^(2)+y^(2)+8x-4y+4=0 tangent at the point theta=(pi)/4 is