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解,設這兩個數分別為x,y則有:x+y=3.(1)xy=1.(2)對(1)變形有:y=3-x將其帶入方程2x(3-x)=1x²;-3x+1=0x=(3+√5)/2,或x=(3-√5)/2所以,當x=(3+√5)/2時,帶入方程1得y=(3-√5)/2當x=(3-√5)/2時,帶入…
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