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If the line xcostheta+ysintheta=2 is the...

If the line `xcostheta+ysintheta=2` is the equation of a transverse common tangent to the circles `x^2+y^2=4` and `x^2+y^2-6sqrt(3)x-6y+20=0` , then the value of `theta` is (a) `(5pi)/6` (b) `(2pi)/3` (c) `pi/3` (d) `pi/6`

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CENGAGE PUBLICATION-CONIC SECTIONS-All Questions
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