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What is the equation of a tangent to a circle from an external point? |
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Answer» The equation of the tangent can be given as x\(a_1\)+y\(b_1\)= a2, where (\(a_1\), \(b_1\)) are the coordinates from which the tangent is drawn. A tangent is a straight line that touches the circle at a point and is called the tangent to the circle. The point where the tangent touches the circle is called the point of contact. |
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