Contact us
Choose a category below so we can get back to you as quickly as possible.
你把圖大概畫一下,然後就可以算了.建立直角座標,找出點A(根號5,-根號7),(在第四象限)連結AO,這條線段就是點A到原點O的距離啦.你再從點A作一條垂線到坐標軸上.(X軸或Y軸都可以),這樣就出現一個三角形啦.觀察這個三…
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.