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Find the equation of all common tangents of the circles (i) x^(2)+y^(2)=9 and x^(2)+y(2)-16x+2y+49=0 (ii) x^(2)+y^(2)+4x+2y-4=0 and x^(2)+y^(2)-4x-2y+4=0 |
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Answer» `16x+63y+195=0` (II) `y-2=0,4x-3y-10=0,x-1=0,3x+4y-5=0` |
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