Question:medium
A pair of tangents are drawn from the origin to the circle \( x^2 + y^2 + 20(x + y) + 20 = 0 \), then the equation of the pair of tangent are
A pair of tangents are drawn from the origin to the circle \( x^2 + y^2 + 20(x + y) + 20 = 0 \), then the equation of the pair of tangent are
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To find the equation of tangents from the origin to a circle, use the general formula and complete the square for the circle equation.
Updated On: Mar 25, 2026
- \( x^2 + y^2 - 5xy = 0 \)
- \( x^2 + y^2 + 2xy = 0 \)
- \( x^2 + y^2 - 2xy = 0 \)
- \( 2x^2 + 2y^2 + 5xy = 0 \)
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The Correct Option is D
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