Q.The number of common tangents to the circles $x^2 + y^2 = 1$ and $x^2 + y^2 - 2x - 4y + 3 = 0$ is

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Q.The number of common tangents to the circles x2+y2=1x^2 + y^2 = 1x2+y2=1 and x2+y2−2x−4y+3=0x^2 + y^2 - 2x - 4y + 3 = 0x2+y2−2x−4y+3=0 is