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12swiftt

  • 3 years ago

This one's bothering me.. Find equations for two lines through the origin that are tangent to the curve (x^2) -4x+(y^2)+3=0

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  1. NoelGreco
    • 3 years ago
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    Complete the square on the quadratic in x. It's a circle.

  2. adi171
    • 3 years ago
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    tats a equation of circle....

  3. jpu
    • 3 years ago
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    the equation of the line is\[y=+or-\sqrt{1/3}x\]. just by using reduced equation form\[y=mx+b\]. then by solving the system\[\left\{ x ^2-4x+y^2+3=0;y=mx+b \right\}\] and the line containing the origin and verifying the condition of tangency will give the result

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