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Two circles touch externally at a point `P` . From a point `T` on the tangent at `P` , tangents `T Q` and `T R` are drawn to the circles with points of contact `Q` and `R` respectively. Prove that `T Q=T R` . (FIGURE)

A

TR

B

`(1)/(2)` TP

C

`(1)/(2)` TR

D

None of these

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The correct Answer is:
A
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