若x.y满足y=√1-3x+√(x-1)²+√3x-1,求x+y的平方根.
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若x.y满足y=√1-3x+√(x-1)²+√3x-1,求x+y的平方根.若x.y满足y=√1-3x+√(x-1)²+√3x-1,求x+y的平方根.若x.y满足y=√1-3x+√(
若x.y满足y=√1-3x+√(x-1)²+√3x-1,求x+y的平方根.
若x.y满足y=√1-3x+√(x-1)²+√3x-1,求x+y的平方根.
若x.y满足y=√1-3x+√(x-1)²+√3x-1,求x+y的平方根.
1-3x≧0,得:x≦1/3
3x-1≧0,得:x≧1/3
所以,x=1/3
把x=1/3代入得:y=0+√(16/9)+0=4/3
所以,x=1/3,y=4/3
则:x+y=5/3
x+y的平方根为±(√15)/3
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您好!
若根式有意义,则:
1-3X>>0,且3X-1>>0
所以:1-3X=3X-1
X=1/3
Y=√1-3x+√(x-1)²+√3x-1
Y=|=1-1/3|=1-1/3=2/3
x+y的平方根
=1/3+2/3的平方根
=1的平方根
=1,或-1
希望对您有帮助!
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