已知实数a,b满足√-a=b,化简|a|+2√(-b)^2-|3b-2a|=_____
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![已知实数a,b满足√-a=b,化简|a|+2√(-b)^2-|3b-2a|=_____](/uploads/image/z/2494866-66-6.jpg?t=%E5%B7%B2%E7%9F%A5%E5%AE%9E%E6%95%B0a%2Cb%E6%BB%A1%E8%B6%B3%E2%88%9A-a%3Db%2C%E5%8C%96%E7%AE%80%7Ca%7C%2B2%E2%88%9A%28-b%29%5E2-%7C3b-2a%7C%3D_____)
已知实数a,b满足√-a=b,化简|a|+2√(-b)^2-|3b-2a|=_____
已知实数a,b满足√-a=b,化简|a|+2√(-b)^2-|3b-2a|=_____
已知实数a,b满足√-a=b,化简|a|+2√(-b)^2-|3b-2a|=_____
特殊值法:取a=-4,b=2,则
|a|+2√(-b)^2-|3b-2a|=4+4-14=-6猜测结果为a-b;
或者作一般分析
由b^2=-a>0,b>0,a
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