Mathematics
Senior High
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二項定理で定数項を求める時、赤の波線部はなぜ1になるのでしょうか??
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2)(2ペー→[定数項]
5Cr(283)5-r(-3)
23(5-5). (73) = L
T
15-3r
x
15-5r
2 r
b= z.
5
5r=15
↓
13
5
?
0
10.
44
5.C2(28)
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では1以外でもなんでも良いという認識で大丈夫でしょうか!!