Đường tròn trong Oxy khó đây

Y

younglady9x

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L

longbien97

đề thiếu dữ kiện hay sao ý nhỉ ???
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C

conga222222

$\begin{array}{l}
{\left( {x + 6} \right)^2} + {\left( {y - 6} \right)^2} = 50\\
\to tam\;I\left( { - 6;6} \right)\;ban\;kinh\;R = \sqrt {50} \\
goi\;A\left( {a;0} \right)\;B\left( {0;b} \right)\\
\to M\left( {\frac{a}{3};\frac{b}{2}} \right)\\
theo\;de\;bai\;AB\;tiep\;xuc\;C\;tai\;M\\
\to IM = \sqrt {{{\left( {\frac{a}{3} + 6} \right)}^2} + {{\left( {\frac{b}{3} - 6} \right)}^2}} = R = \sqrt {50} \;(1)\\
IM\;vuong\;voi\;AB \to \overrightarrow {AB} *\overrightarrow {IM} = 0 \leftrightarrow - a\left( {\frac{a}{3} + 6} \right) + b\left( {\frac{b}{3} - 6} \right) = 0\;(2)\\
giai\;he\;(1)\;(2) \to a,b \to ...
\end{array}$
 
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