1/(x-10)+1/(x-6)=1/(x-7)+1/(x-9)的解
1/(x-10)+1/(x-6)=1/(x-7)+1/(x-9)的解
數(shù)學(xué)人氣:763 ℃時(shí)間:2020-04-14 08:17:28
優(yōu)質(zhì)解答
通分得:[(X-6)+(X-10)]/[(X-6)*(X-10)]=[(X-7)+(X-9)]/[(X-7)*(X-9)](2X-16)/(X^2-16X+60)=(2X-16)/(X^2-16X+63)要使方程成立,則2X-16=0(1)或X^2-16X+60=X^2-16X+63(2)(1)的解為:X=8;(2)無解所以:1/(x-10)+1/(x-6)=...
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