3x+2y=0
x=-2y/3
(1+(2yy/xx-yy))(1-(2y/(x+y))
=(1+2y^2/(4/9-1)y^2)(1-2y/(-2/3+1)y)=(1-18/5)(1-6)=13
已知3x+2y=0,求(1+(2yy/xx-yy))(1-(2y/(x+y))
已知3x+2y=0,求(1+(2yy/xx-yy))(1-(2y/(x+y))
數(shù)學(xué)人氣：702 ℃時(shí)間：2020-03-25 14:31:45
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