Mathematics
Senior High
Resolved
考え方、方針から全く分からないです。(1)だけでもいいので考え方、解き方を教えて頂きたいです
2X
29 次の式を簡単にせよ。
2
x-1+
(1)
x+2
2
x+1-
x+2
*(2)1-1
1
1-
1-x
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(2)