1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²+1+ 2a-64的立方根的值3.已知平面直角坐标系中A(4,6),B(0,2)C(6,0)三点,求三角形ABC的面
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![1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²+1+ 2a-64的立方根的值3.已知平面直角坐标系中A(4,6),B(0,2)C(6,0)三点,求三角形ABC的面](/uploads/image/z/7059835-19-5.jpg?t=1.%E8%8B%A5%7C+x-y%2B2%7C%E4%B8%8E%E6%A0%B9%E5%8F%B7x%2By-1%E4%BA%92%E4%B8%BA%E7%9B%B8%E5%8F%8D%E6%95%B0%2C%E6%B1%8222x%2B2y%E7%9A%84%E7%AB%8B%E6%96%B9%E6%A0%B92.%E5%B7%B2%E7%9F%A5%E6%95%B0a%E6%98%AF%E7%BB%9D%E5%AF%B9%E5%80%BC%E6%9C%80%E5%B0%8F%E7%9A%84%E6%95%B0%2C%E6%B1%82%E6%A0%B9%E5%8F%B72010a-+5%E6%A0%B9%E5%8F%B72a%26sup2%3B%2B1%2B+2a-64%E7%9A%84%E7%AB%8B%E6%96%B9%E6%A0%B9%E7%9A%84%E5%80%BC3.%E5%B7%B2%E7%9F%A5%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BB%E4%B8%ADA%EF%BC%884%2C6%EF%BC%89%2CB%EF%BC%880%2C2%EF%BC%89C%EF%BC%886%2C0%EF%BC%89%E4%B8%89%E7%82%B9%2C%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2ABC%E7%9A%84%E9%9D%A2)
1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²+1+ 2a-64的立方根的值3.已知平面直角坐标系中A(4,6),B(0,2)C(6,0)三点,求三角形ABC的面
1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根
2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²+1+ 2a-64的立方根的值
3.已知平面直角坐标系中A(4,6),B(0,2)C(6,0)三点,求三角形ABC的面积
1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²+1+ 2a-64的立方根的值3.已知平面直角坐标系中A(4,6),B(0,2)C(6,0)三点,求三角形ABC的面
1.| x-y+2|与根号x+y-1互为相反数,绝对值,根号》=0,相反数.
那么都=0
x-y+2=0,x+y-1=0
2.绝对值最小的数,绝对值》=0,a=0
3.过A做X轴垂线,三角形ABC的面积=两个梯形面积-三角形BOC的面积
1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根
|x-y+2|=-|x+y-1|
x-y+2=0
x+y-1=0
两式相加2x+1=0 x=-1/2 -1/2+y-1=0 y=3/2
22x+2y=-11+3=-8
2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²...
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1.若| x-y+2|与根号x+y-1互为相反数,求22x+2y的立方根
|x-y+2|=-|x+y-1|
x-y+2=0
x+y-1=0
两式相加2x+1=0 x=-1/2 -1/2+y-1=0 y=3/2
22x+2y=-11+3=-8
2.已知数a是绝对值最小的数,求根号2010a- 5根号2a²+1+ 2a-64的立方根的值
a=0
√(2010a)-5√(2a^2+1)+(2a-64)^1/3
= 0 -5+ (-4)
=-9
3.已知平面直角坐标系中A(4,6),B(0,2)C(6,0)三点,求三角形ABC的面积
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