Equation of tangent of the circle x*2+y*2-8x-2y+12=0 at the points who

1.	Equation of tangent of the circle x2+y2-8x-2y+12=0 at the points whose ordinates are 1
Answer» Kindly mention the absicsa too Let the point on the circle be (x,1)Where the tangent is also passing from the same point. x²+(1)²-8x-2(1)+12=0 x²-8x+11=0 Where x=-b+-√b²-4ac /2 x=4+-√5 The equation of the tangents is x=4+√5 and x=4-√5

Equation of tangent of the circle x2+y2-8x-2y+12=0 at the points whose ordinates are 1

Answer» Kindly mention the absicsa too

Let the point on the circle be (x,1)Where the tangent is also passing from the same point.

x²+(1)²-8x-2(1)+12=0

x²-8x+11=0

Where x=-b+-√b²-4ac /2

x=4+-√5

The equation of the tangents is x=4+√5 and x=4-√5

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Equation of tangent of the circle x*2+y*2-8x-2y+12=0 at the points whose ordinates are 1

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Equation of tangent of the circle x2+y2-8x-2y+12=0 at the points whose ordinates are 1