Rich_M
2020-02-03
都说数学好才能炒股好，有没有能解出来这道题的，我用了20多分钟[流泪][流泪]
$纳斯达克(.IXIC)$
$上证指数(000001.SH)$
$特斯拉(TSLA)$
$蔚来(NIO)$
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璀璨星河亮晶晶
2020-02-03
璀璨星河亮晶晶
为什么不用量角器？
盲选一把梭
:
我们老师说过，这种题角度一般都是整数。优先使用量角器。 [龇牙]
Rich_M
:
太秀了 如果是填空题你的就是最优解
旭阳特别帅
2020-02-03
旭阳特别帅
把这个角设为X，其余未知角全部用这个X相关的式子来表示.最后中间的三个角围起来加起来等于360，方程就出来了.
Rich_M
回复
我就是阿硕
:
好的[晕]
我就是阿硕
回复
Rich_M
:
我关注你了，你算出来发一下。我就不相信这个邪了，好歹也是受过高等教育的。 [捂脸] [捂脸] [捂脸]
Rich_M
回复
我就是阿硕
:
能算出来 明天我可以写个过程 但是从我这个半吊子数学能力找不到简单的方法 都挺复杂的
我就是阿硕
回复
Rich_M
:
这么认真啊！我也是这个思路！算不出来，用我粗浅的数学知识算不出来，而且我也肯定这个题目就是算不出来！
Rich_M
回复
我就是阿硕
:
能算的 在右边做一个和左边一样的三角形 可以通过角度通过相似定理证出来 但我感觉这方法太笨了[流泪]
全部7条回复
Rich_M
2020-02-03
Rich_M
后半部分，整个过程是用正余弦定理做的
鑫鑫向荣521
:
God，这个必须赞。sin30°=1/2额都不记得了😂哦弥陀佛
Rich_M
回复
我就是阿硕
:
还是炒股舒服，这玩应算多了会变傻的[晕]
我就是阿硕
回复
Rich_M
:
👍给学霸点赞，我是做不出来的！我粗浅地认为解不出！
Rich_M
回复
我就是阿硕
:
所以说我这个算法绝对不是标准答案
我就是阿硕
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Rich_M
:
初中哪有这种算法？奥数吧 [惊讶]
全部7条回复
乐观阳光
2020-02-03
乐观阳光
两个方程组要用20多分钟👍🏻
Rich_M
回复
乐观阳光
:
这个方法貌似不行 我最开始也是这么想的[笑哭]
Nemoooo
回复
乐观阳光
:
你用你的方法解一下试试 兄弟 不求甚解
乐观阳光
回复
Nemoooo
:
你在逗我？他有问我要答案吗。语文不好！？
Nemoooo
回复
乐观阳光
:
用笔解出答案再来发言
乐观阳光
:
a＋b＝40 a＋c＝270 a＋d＝130 c＋d＝360 👌
全部6条回复
那波
2020-02-03
那波
有意思，用正玄定理肯定可以算出来，但我延伸左角线居然又是个等腰三角形，延伸右边的线是个直角三角形。我再想想别的方法
小白二号
2020-02-03
小白二号
哈哈哈 看着简单的东西想要的出答案其实并不容易 [强]
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