If: 3x -2y -26 = 0
Then: y = 1.5x -13
If: x^2 +y^2 -6x +4y = 0
Then: x^3 +(1.5x -13)^2 -6x +4(1.5x -13 = 0
Expanding brackets: x^2 +2.25x^2 -39x +169 -6x +6x -52 = 0
Collecting like terms: 3.25x^2 -39x +117 = 0
Divide all terms by 3.25: x^2 -12x +36 = 0
Factorizing: (x-6)(x-6) = 0 => x = 6 and also x = 6
By substitution point of contact is at: (6, -4)
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If you mean: 2x^2 +2y^2 -8x -5y -1 = 0 making contact at (1, -1) Then the tangent equation in its general form works out as: 4x+9y+5 = 0
Circle equation: x^2 +y^2 -8x +4y = 30 Tangent line equation: y = x+4 Centre of circle: (4, -2) Slope of radius: -1 Radius equation: y--2 = -1(x-4) => y = -x+2 Note that this proves that tangent of a circle is always at right angles to its radius
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In trig, the secant squared divided by the tangent equals the hypotenuse squared divided by the product of the opposite and adjacent sides of the triangle.Details: secant = hypotenuse/adjacent (H/A) and tangent = opposite/adjacent (A/O);Then secant2/tangent = (H2/A2)/(O/A) = H2/A2 x A/O = H2/AO.
Equation: x² + y² -6x +4y = 0 Completing the squares: (x-3)² + (y+2)² = 13 Centre of circle: (3, -2) Contact point: (6, -4) Slope of radius: -2/3 Slope of tangent: 3/2 Tangent equation: y - -4 = 3/2(x-6) => 2y - -8 = 3x-18 => 2y = 3x-26 Tangent line equation in its general form: 3x-2y-26 = 0