Mathematics
Senior High
矢印のとこの式変化がわかりません。
2
ーーに+YT1
ーー の=テキエタ2+1
また
2ツー =
*キYタ"二1
回2 1
ター(+1)
ニダ二1 一*
よ総瑞 、
2 2
のみ 27T1
#>0 )
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