$\"\"$

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The equation is $\"\"$ and the point is $\"\"$ .

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Consider $\"\"$ .

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Differentiate on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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Slope of the tangent line at $\"\"$ .

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$\"\"$

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Slope of the tangent line is $\"\"$ .

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$\"\"$

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Point slope form of line equation is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the above equation.

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$\"\"$

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Tangent line is $\"\"$ .

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The slope of the tangent line is perpendicular to the normal line slope.

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Sope of tangent line $\"\"$ Slope of normal line is equal to $\"\"$ .

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$\"\"$

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Point slope form of line equation is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in the above equation.

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$\"\"$

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Normal line equation is $\"\"$ .

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$\"\"$

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The equation of circle with center $\"\"$ and radius between these two circles $\"\"$ is $\"\"$ .

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$\"\"$

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Differentiate on each side with respect to $\"\"$ .

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in the above equation.

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ in the above equation.

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$\"\"$

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$\"\"$

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$\"\"$

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Substitute $\"\"$ in the circle equation $\"\"$ .

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$\"\"$

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Circle passes through the point $\"\"$ .

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$\"\"$

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$\"\"$

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Roots of the quadratic equation is $\"\"$ .

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Then,

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$\"\"$

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Therefore $\"\"$ and $\"\"$ .

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$

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Substitute $\"\"$ in $\"\"$ .

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$\"\"$ .

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Circle equations: $\"\"$ and $\"\"$ .

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$\"\"$

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Graph:

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Graph both the circle equations, curve, tangent line, normal line and point.

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$\"\"$

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$\"\"$

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Tangent line equation is $\"\"$ .

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Normal line equation is $\"\"$ .

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Circle equations: $\"\"$ and $\"\"$ .