解方程组｛√ 2/2x+√ 3/2y=5/2 √ 2x-2√ 3y=-4
人气：282 ℃ 时间：2020-06-24 10:46:48
解答
√ 2/2x+√ 3/2y=5/2 .(1)
√ 2x-2√ 3y=-4 .(2)
(1)*2-(2)得
3√ 3y=9 ,得y=√ 3 .(3)
把(3)代入（1）或（2）,得x=√ 2
所以,方程组的解为x=√ 2,y=√ 3
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