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Question

The radius of the circle

 

Solution

Correct option is

1 + cos θ

Equation of the circle can be written as

 

 

 

⇒ The radius = r = 1 + cos θ.

Testing

SIMILAR QUESTIONS

Q1

The value of

      

Q2

If θ lies in the first quadrant and cos θ = 8/17, then the value of cos (300 +θ) + cos (450 – θ) + cos (1200 – θ) is

Q3

If A lies in the second quadrant and 3 tan A + 4 = 0, the value of 2 cot A – 5 cos A + sin A is equal to

Q4

The value of the determinant

                          

Is zero if

Q5

  is equal to

Q6

An angle α is divided into two parts so that the ratio of the tangents of these parts is λ. If the difference between these parts is x then sinx/sinα is equal to

Q7

 

 or equal to

Q8

Given θ Ïµ (0,π/4) and t1 = (tan θ)tanθ t2 = (tan θ)cotθt3 = (cot θ)tanθand t4 = (cot θ)cotθ then

Q9

If x = sin αy = sin βz = sin (α + β) then cos (α + β) =

Q10

If tan x + tan (x + π/3) + tan (x + 2π/3) = 3, then