橡树阅读理解

如何证明三角形中a^2+b^2+c^2 直接写得数,能不能写百分数例如:1-35％等于65％还是0.65 若一个三角形的三边长为a、b、c,且满足a^2+2b^2-2ab-2ac+c^2=0,试判断该三角形是什么三角形?并说明理由. 二十点一等于多少百分数 已知,a、b、c是三角形ABC的三边,且a^2+b^2+c^2-2ab-2bc-2ac=0,求此三角形的形状并证明. They will lost the game unless they try their best.为何will和lost可以搭配呢?lost做动词时不是lose的过去式吗? They will lose the game [ ] they try their best . they did their best in this game,but they__ _______they may not succeed,they will try their best. 若0 已知a.b.c分别是三角形的三边 ,试说明b 平方-a平方-c平方-2ac小于0 Try your best.They will choose a person _____ they think is the best.Try your best.They will choose a person _____ they think is the best.A.whom B.which C.who D.whose选择C,为什么?这里的先行词不是作宾语吗? 已知a,b,c分别是三角形的三边,试说明b的平方-a的平方-c的平方-2ac＜0 已知a、b、c分别是三角形的三边,试说明：b的平方—a的平—c的平方—2ac小于0 15.19的平方根是多少 已知a,b,c为三角形的三边长,证明a平方减b平方减c平方减2bc小于0 I don't wanna fall in love 中文意思是什么 I want to fall in love with you. 英语翻译Who needs to feel that wayWho needs those words to sayWho wants to give their heartTo watch love fade away]Cause I made up my mindI didnt wanna know]Why should I find a loveThat isnt here to stayI wasnt waiting until you came alongBut I d 英语翻译在听歌的时候遇到这一句英语不会,希望会的人帮我翻译 已知a方+b方=1,b方+c方=2,c方+a方=2,则ab+bc+ca的最小值为?.大虾闷..加油啊... 已知a×a+b×b=1,b×b+c×c=2,c×c+a×a=2,求ab+bc+ca的最小值是多少? 第四题,., 第四题 ( )------Do you think you will lose the game?------No,_________ A.I hope so B.I'm sure C.I hope noD.I'm afraid so Who do you think will win the game? Do you think they will win the game?选择疑问Do you think they will win the game?A.l hope not B.l don't hope so C.l don't hope D.l don't hope Do you think they will lose the matchA.I hope so B.I'm sure C.I hope no,D.I'm afraid so Who do you think _____(lose) the game last night 八上物理第一章第三节 运动的快慢 知识点总结一定要详细 不能漏掉一个知识点 11分之6化百分数,怎么化 第4题.