三角函数之歌文本歌词

三角函数之歌 - 小周

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 fell easy to sovle

But an obtuse triange's 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

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 fell easy to sovle

But an obtuse triange's 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

三角函数之歌LRC歌词

[00:00.00]三角函数之歌 - 小周

[00:00.00]This group of formulas are gonna help you solve

[00:02.00]sin(α+β)=sinα•cosβ+cosα•sinβ

[00:05.00]cos(α+β)=cosα•cosβ-sinα•sinβ

[00:09.00]tan(α+β)=(tanα+tanβ)/(1-tanα•tanβ)

[00:13.00]sin(α-β)=sinα•cosβ-cosα•sinβ

[00:16.00]cos(α-β)=cosα•cosβ+sinα•sinβ

[00:19.00]tan(α-β)=(tanα-tanβ)/(1+tanα•tanβ)

[00:24.00]As you come across a right triangle you fell easy to sovle

[00:27.00]But an obtuse triange's gonna make you feel confused

[00:29.00]Don't worry about what you do

[00:30.00]There are always means to solve

[00:31.00]As long as you master the sine cosine law

[00:34.00]This group of formulas are gonna help you solve

[00:36.00]sin(α+β)=sinα•cosβ+cosα•sinβ

[00:39.00]cos(α+β)=cosα•cosβ-sinα•sinβ

[00:43.00]tan(α+β)=(tanα+tanβ)/(1-tanα•tanβ)

[00:47.00]sin(α-β)=sinα•cosβ-cosα•sinβ

[00:51.00]cos(α-β)=cosα•cosβ+sinα•sinβ

[00:54.00]tan(α-β)=(tanα-tanβ)/(1+tanα•tanβ)

[00:58.00]As you come across a right triangle you fell easy to sovle

[01:00.00]But an obtuse triange's gonna make you feel confused

[01:02.00]Don't worry about what you do

[01:04.00]There are always means to solve

[01:05.00]As long as you master the sine cosine law