我想問下有時d partial fraction我地會let佢做兩個分數
eg (a/x-1)+(b/x+1)咁
但有d題目係要let多個整數係前面
即係a+(b/x-1)+(c/x-1)咁
係幾時先要咁做既呢?有冇話見到題目既咩野先要加?幾時唔洗加?
唔該哂各位高人!
收錄日期: 2021-04-19 15:58:05
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091012000051KK00146