若实数a,b满足a^2+b^2《1,则关于x的方程x^2-ax+3/4b^2=0有实数根的概率设X=a^2 ,y=b^2则原式可变形为x+y
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![若实数a,b满足a^2+b^2《1,则关于x的方程x^2-ax+3/4b^2=0有实数根的概率设X=a^2 ,y=b^2则原式可变形为x+y](/uploads/image/z/2379167-71-7.jpg?t=%E8%8B%A5%E5%AE%9E%E6%95%B0a%2Cb%E6%BB%A1%E8%B6%B3a%5E2%2Bb%5E2%E3%80%8A1%2C%E5%88%99%E5%85%B3%E4%BA%8Ex%E7%9A%84%E6%96%B9%E7%A8%8Bx%5E2-ax%2B3%2F4b%5E2%3D0%E6%9C%89%E5%AE%9E%E6%95%B0%E6%A0%B9%E7%9A%84%E6%A6%82%E7%8E%87%E8%AE%BEX%3Da%5E2+%2Cy%3Db%5E2%E5%88%99%E5%8E%9F%E5%BC%8F%E5%8F%AF%E5%8F%98%E5%BD%A2%E4%B8%BAx%2By)
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