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数学
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已知-3x^ayz^c,1/2x^2 y^b z^c,4x^a y^b z^3都是同类项,试求a^2+b^2+c^2的值.
人气:173 ℃ 时间:2020-08-20 05:11:13
解答
由于前三个为同类项,那么a=2,b=1,c=3
a^2+b^2+c^2=4+1+9=14
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