JEE Advanced 2020 Full Test 3 Paper 1

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Question : 41 of 54

Marks: +1, -0

Let ∆PQR be formed by the common tangents to the circles x2+y2+6x=0 and x2+y2−2x=0, then which of the following is (are) true?

Centroid of ∆PQR is (1,0)
Radius of circle intscribed in ∆PQR is 1.
Area of ∆PQR is 3√3
The y− intercept of common tangent having negative slope is 3.

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