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  • Length of a tangent from a point (-5,-4) to the circle <img alt="x^{2}+y^{2}-4x+2x-10=0" src="https://learn.careers360.com/latex-image/?x%5E%7B2%7D&plus;y%5E%7B2%7D-4x&plus;2x-10%3D0"

Length of a tangent from a point (-5,-4) to the circle x^{2}+y^{2}-4x+2x-10=0 is

Option: 1

7


Option: 2

\sqrt{48}


Option: 3

9


Option: 4

\sqrt{43}


Answers (1)

best_answer

Length of tangent = \sqrt{\left(-5\right)^2+\left(-4\right)^2-4\left(-5\right)+2\left(-4\right)-10}=\sqrt{43}???????

Posted by

Shailly goel

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