Trigonometric Functions-Various Artists
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TXT Trigonometric Functions-Various Artists 文本歌词
Trigonometric Functions - Various Artists
原唱：映射者/天儿
后期：昔染
视频：讲不清
When you first study math about 1234
First study equation about xyzt
It will help you to think in a logical way
When you sing sine cosine tangent
Sine cosine tangent cotangent
Sine cosine secant cosecant
Let's sing a song about trig-functions
sin(2π+α)=sinα
cos(2π+α)=cosα
tan(2π+α)=tanα
Which is induction formula1 and induction formula 2
sin(π+α)=-sinα
cos(π+α)=-cosα
tan(π+α)=tanα
sin(π-α)=sinα
cos(π-α)=-cosα
tan(π-α)=-tanα
These are all those "name do not change"
As pi goes to half pi the difference shall be huge
sin(π/2+α)=cosα
sin(π/2-α)=cosα
cos(π/2+α)=-sinα
cos(π/2-α)=sinα
tan(π/2+α)=-cotα
tan(π/2-α)=cotα
That is to say the odds will change evens are conserved
The notations that they get depend on where they are
But no matter where you are
I've gotta say that
If you were my sine curve I'd be your cosine curve
I'll be your derivative you'll be my negative one
As you change you amplitude I change my phase
We can oscillate freely in the external space
As we change our period and costant at hand
We travel from the origin to infinity
It's you sine and you cosine
Who make charming music around the world
It's you tangent cotangent
Who proclaim the true meaning of centrosymmetry
You wanna measure width of a river height of a tower
You scratch your head which cost you more than an hour
You don't need to ask any "gods" or" master" for help
This group of formulas are gonna help you solve
sin(α+β)=sinα•cosβ+cosα•sinβ
cos(α+β)=cosα•cosβ-sinα•sinβ
tan(α+β)=(tanα+tanβ)/(1-tanα•tanβ)
sin(α-β)=sinα•cosβ-cosα•sinβ
cos(α-β)=cosα•cosβ+sinα•sinβ
tan(α-β)=(tanα-tanβ)/(1+tanα•tanβ)
As you come across a right triangle you feel easy to solve
But an obtuse triange gonna make you feel confused
Don't worry about what you do
There are always means to solve
As long as you master the sine cosine law
At this moment I've got nothing to say
As trig-functions rain down upon me
At this moment I've got nothing to say
Let's sing a song about trig-functions
Long live the trigonometric functions
Trigonometric Functions-Various Artists的精彩乐评
阿数，回想我们的初见，你小心翼翼的问我，1+1等于几？加法会不会太难？那时的你是如此的纯洁，除了数字就什么都没有了，可是现在的你，满身纹着方程式，这公式，那公式，与阿英暖昧不清的每一刻，都让我感到无比恶心，那年杏花微雨，我低头捡了一支笔，从此与你形同陌路，这么多年的情和爱，终究还是错付了，嘤嘤嘤[doge]
知识以一种歹毒的方式进入了我的脑袋
终于明白猴哥了，这不是妥妥的紧箍咒吗😭😭😭
明天上课给学生听听😆😆
已经转发给数学老师了🤔
数学不难啊，无非就是，子集，真子集，交集，并集，补集，原命题，逆命题，否命题，逆否命题，或命题，且命题，非命题，充分条件，必要条件，充要条件，全称量词，存在量词，虚数，复数，函数，单调函数，奇偶函数，周期函数，指数函数，对数函数，幂函数，三角函数，平行变换，伸缩变换，对称变换，向量，平面向量，平行向量，向量夹角，共线条件，垂直条件，加法运算，减法运算，数乘运算，数量积运算线性规划，约束条件，目标函数，可行解，可行域，最优解，顺序结构，条件结构，循环结构，输入语句，循环语句，归纳推理，类别推理，合情推理，演绎推理，直接证明，间接证明，比较法，综合法，分析法，反证法，放缩法，数学归纳法，排列……
所以是英语老师和数学老师一起商量写出来的吧？
我嘞个豆，这下谁还分得清我和学霸👈
三角函数诱导公式都存在一个规律1.奇变偶不变 2.符号看象限。奇偶代表二分之π的倍数，变代表的是名字的变化，符号是三角函数的正负号，象限是变之前终边所在的象限。比如sin（π/2+α）=cosα中，2分之π的倍数是1，是奇数，sin变成cos。α默认是锐角，则2/π+α的终边在第二象限，∵sin是正的∴cos是正号，综上=cosα
监考老师:你在干嘛
我:等一下 马上唱到答案了👏
幸亏我英语不好，我自动屏蔽歌词内容这首歌还挺好听的
这么恶毒 这不紧箍咒吗
数学 我讨厌你和英语搞在一起。，、
最讨厌的语言唱着我最讨厌的学科💔
始于有趣的歌词，忠于优美的声线和曲子