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Let C(1) and C(2) are circles defined by...

Let `C_(1) and C_(2)` are circles defined by `x^(2) + y^(2) - 20x + 64 = 0 `and `x^(2) + y^(2) + 30 x + 144 = 0`. The length of the shortest line segment PQ that is tangent to `C_(1)` at P to `C_(2)` at Q is :

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Let C_1 and C_2 are circles defined by x^2+y^2 -20x+64=0 and x^2+y^2+30x +144=0 . The length of the shortest line segment PQ that is tangent to C_1 at P and to C_2 at Q is

Let C_1 and C_2 are circles defined by x^2+y^2 -20x+64=0 and x^2+y^2+30x +144=0 . The length of the shortest line segment PQ that is tangent to C_1 at P and to C_2 at Q is

Let C_1 and C_2 are circles defined by x^2+y^2 -20x+64=0 and x^2+y^2+30x +144=0 . The length of the shortest line segment PQ that is tangent to C_1 at P and to C_2 at Q is

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