Mathematics
Senior High
1行目から2行目の式変形を教えてください
(3) lim
x→0
31+x-31-xry se
1
(1+x)-(1-x)
=lim
x→0x3/(1+x)2 +3(1+x)(1-x)+(1-x)2
2
=lim
x-03√/(1+x)²+3√/1−x²+3/(1-x)220 (S)
x→03/(1+x)2 + 3/1-x2+3(1-x)2
2-3
mil=(x-x.S) rail
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