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(K-1)/(X-1)--X/(X-1)=0求k(K-1)/(X-1)--X/(X-1)=0有增根求(K-1)/(X-1)--X/(X-1)=0求k(K-1)/(X-1)--X/(X-1)=0有增根求k
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(K-1)/(X-1)--X/(X-1)=0 求k (K-1)/(X-1)--X/(X-1)=0 有增根 求
(K-1)/(X-1)--X/(X-1)=0 求k (K-1)/(X-1)--X/(X-1)=0 有增根 求k
(K-1)/(X-1)--X/(X-1)=0 求k (K-1)/(X-1)--X/(X-1)=0 有增根 求k
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答案和解析
(K-1)/(X-1)--X/(X-1)=0 ,化为(X-1)[X-(K-1)]=0 ,
得X=1或X=K-1,
而X=1为增根,所以,当(K-1)/(X-1)--X/(X-1)=0 无解时,K-1=1,即k=2;
当(K-1)/(X-1)--X/(X-1)=0 有增根时,k≠2.
得X=1或X=K-1,
而X=1为增根,所以,当(K-1)/(X-1)--X/(X-1)=0 无解时,K-1=1,即k=2;
当(K-1)/(X-1)--X/(X-1)=0 有增根时,k≠2.
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