English Junior High about 10 yearsago

One began to cry suddenly and the others followed him 訳してください

English Senior High about 10 yearsago

One began to cry suddenly and the others followed him 訳してください

Mathematics Senior High over 10 yearsago

円楕円変換の解き方を⑫の問題で教えてください お願いします( .. )

Mathematics Senior High over 10 yearsago

途中式も含めて教えてください( .. ) お願いします