Mathematics
Senior High
146番を教えて下さい。高2数学Bのベクトルの問題です。よろしくお願いします。
146 AABC を含む平面上の点Pが次の等式を満たすとき,点Pの
位置をいえ。
*(1) PA+PB+PC=AB
(3) 10AP=2AB-3CA
(2) PB+PC=B
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