Đề thi chính thức vào 10 môn Toán Sở GD&ĐT Trà Vin...

A 1) \(A=6\)

2) \(\left( x;y \right)=\left( 2;-1 \right)\).

B 1) \(A=3\)

2) \(\left( x;y \right)=\left( 2;-1 \right)\).

C 1) \(A=6\)

2) \(\left( x;y \right)=\left( 3;-1 \right)\).

D 1) \(A=5\)

2) \(\left( x;y \right)=\left( 2;3 \right)\).

A \(\left( -1;2\right);\,\,\left( 6;4 \right)\).

B \(\left( -1;5 \right);\,\,\left( 1;4 \right)\).

C \(\left( -1;1 \right);\,\,\left( 2;6 \right)\).

D \(\left( -1;1 \right);\,\,\left( 2;4 \right)\).

A \({{P}_{\min }}=5\)

B \({{P}_{\min }}=10\)

C \({{P}_{\min }}=15\)

D \({{P}_{\min }}=20\)

A \({{S}_{MDC}}=\frac{\sqrt{3}\left( \sqrt{3}-1 \right)}{3}{{R}^{2}}\)

B \({{S}_{MDC}}=\frac{\sqrt{2}\left( \sqrt{2}-1 \right)}{2}{{R}^{2}}\)

C \({{S}_{MDC}}=\frac{\sqrt{3}\left( \sqrt{3}-1 \right)}{2}{{R}^{2}}\)

D \({{S}_{MDC}}=\frac{\sqrt{2}\left( \sqrt{3}-1 \right)}{2}{{R}^{2}}\)