2 2(y-2013) +(y-2010) =4035则(y-2013)(y-2010)=?
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2 2
(y-2013) +(y-2010) =4035则(y-2013)(y-2010)=?
(y-2013) +(y-2010) =4035则(y-2013)(y-2010)=?
![2 2(y-2013) +(y-2010) =4035则(y-2013)(y-2010)=?](/uploads/image/z/6816098-2-8.jpg?t=2+2%EF%BC%88y-2013%29+%2B%28y-2010%29+%3D4035%E5%88%99%28y-2013%29%28y-2010%29%3D%3F)
设y-2013=t,则:y-2010=t+3
(y-2013)^2+(y-2010)^2=t^2+(t+3)^2=4035,
——》2t^2+6t+9=4035,
——》t^2+3t=2013
——》(y-2013)(y-2010)=t(t+3)=t^2+3t=2013.
(y-2013)^2+(y-2010)^2=t^2+(t+3)^2=4035,
——》2t^2+6t+9=4035,
——》t^2+3t=2013
——》(y-2013)(y-2010)=t(t+3)=t^2+3t=2013.
2 2(y-2013) +(y-2010) =4035则(y-2013)(y-2010)=?
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