Объяснение:
[tex] \frac{ AC}{ \sin(B) } = \frac{BC}{ \sin(A) } < = > \frac{2 \sqrt{3} }{ \frac{ \sqrt{3} }{2} } = \frac{BC}{ \frac{1}{ \sqrt{2} } } \\ BC= \frac{4}{ \sqrt{2} } =2 \sqrt{2} [/tex]
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Объяснение:
[tex] \frac{ AC}{ \sin(B) } = \frac{BC}{ \sin(A) } < = > \frac{2 \sqrt{3} }{ \frac{ \sqrt{3} }{2} } = \frac{BC}{ \frac{1}{ \sqrt{2} } } \\ BC= \frac{4}{ \sqrt{2} } =2 \sqrt{2} [/tex]