① 初二黃金分割的做法
1,BC=(根號5-1)AB?應為,BC=(根號5-1)AB/2
AC=AB-BC=a-(√5-1)/2a=(3-√5)a/2
2,AC^2=AB*BC
則AC/AB=(√5-1)/2
∴AC==(√5-1)/2
3,AC^2=(√5-1)^2=6-2√5
AB*BC=2(2+1-√5)=6-2√5
∴AC的平方=AB乘以BC
② 期末快遞黃金八套七下英語
I. 1-4 ABCB 5-7 AAC
II. 1. wealth 2. beef 3. tomatoes 4. chooses 5. less
III. 1. (to) keep 2. less 3. eating 4. sleeps 5. kinds
IV. 1-5 CABBA
V. 1-5 CACAB 6-10 CACCB
VI. One possible version:
It』s important for us to have a healthyeating habit. We need noodles, rice,milk, bread and eggs every day to give usenergy. Vegetables and fruit arenecessary, too. Doctors say that we should eatvegetables eight to eleven timesa week and we should eat fruit seven to ninetimes a week. Fish and meat have alot of fat. We』d better eat them three orfour times a week. We should eat lessjunk food like French fries andhamburgers. They are bad for our health. Ahealthy eating habit can help uswork better.
③ 七年級上冊數學冀教版期末快遞黃金八套(附答案)
人生都會有快樂和悲傷
④ 語文八年級下《黃金八套》答案(人教版)
自己去書店買,就附有答案。。。
⑤ 期末快遞黃金八套八下數學答案
如圖所示,已知直線AB上一點O,角AOD=42度,角AOD
=34度,角DOE=90度,OF平分角COD,,求角FOD和角EOD的度數
⑥ 英語黃金八套人教版八年級下冊答案!拍下來發我謝謝
自己做啊!
⑦ 深圳台金八福八件套黃金399是真的嗎
你覺得呢 你相信你就等著受騙吧。
⑧ 七年級期末快遞——黃金八套語文下冊的答案
我是你語文老師,你的IP地址已被我記下,希望你自己做,畢竟老師真心希望你們學好,下學期還要跟著我上課,你懂得~
⑨ 初二數學上冊黃金八套答案
作業還是自己做比較好,抄出來的終究不是自己的!好自為之吧!
⑩ 期末快遞黃金8套8年級上冊語文卷的答案
遇到不會的題就上網找答案照抄,根本不想動腦筋,會讓學生養成,在網上是問不到答案的哈
不思考的習慣,改正吧,多思考 做題不怕做錯,就怕不思考