已知2a^2+3c^2=2b62+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值已知2a^2+3c^2=2b^2+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值

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已知2a^2+3c^2=2b62+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值已知2a^2+3c^2=2b^2+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值
已知2a^2+3c^2=2b62+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值
已知2a^2+3c^2=2b^2+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值

已知2a^2+3c^2=2b62+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值已知2a^2+3c^2=2b^2+3d^2=(ad-bc)^2 =6,求(a^2+b^2)(c^2+d^2)的值
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