the equation of the tangent to the circle x2 +y2 +4x -4y+4=0 which make equal intercept on the positive coordinate axes is:


2 years ago

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                                        if tangent is y=mx+c.
Equal intercept means m=-1
x+y=c
perpendicular from center of the circle on tangent is radius.
C=2 root 2
x+y=2 root 2

2 years ago

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