①若x2+4y2+2x-4y+2=0,求5x2=16y2的算术平方根.②已知y=√4-x+√x-4+2,求x^

问题描述:

①若x2+4y2+2x-4y+2=0,求5x2=16y2的算术平方根.②已知y=√4-x+√x-4+2,求x^

①若x2+4y2+2x-4y+2=0,求5x2=16y2的算术平方根.②已知y=√4-x+√x-4+2,求x^①若x2+4y2+2x-4y+2=0,求5x2=16y2的算术平方根.②已知y=√4-x+√x-4+2,求x^①若x2+4y2+2x-4y+2=0,求5x2=16y2的算术平方根.②已知y=√4-x+√x-4+2,求x^
题目不完整.