Mathematics
Senior High
これはなぜ
『2・4+3・2』なのですか？
4と2 で足し算じゃだめなのでしょうか？
33
(2) 3:2に内分する点の座標は
2.4+3-2 2-7+3-1
3+2
すなわち (11)
3+2
3:2に外分する点の座標は
(2
-2.4+3.2
2・7+3・1\
3-2
3-2
すなわち (-2, -11)
(3) 中点の座標は
(2+45+3) すなわち (14)
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