triangle-Original Sky Butterfly's Mathematics-

 

Sky Butterfly's Trigonometric Functions 1

The easiest way in the world at the moment.

 

List

*Isosceles and trigonometric functions

*⩟ ×2 To obtain the triangular function ratio (triangular function ⩟ × 2 ⁿ).

*⩟½ Triangular Bifurcation (triangular functional ⩟½ⁿ) Finding the triangular angle.

*Calculate circumference by height (sin30, sin45).

Act 2.

When the right triangle hypotenuse ab radius r1, the cos and sin are created.

‘How to use triangle function ratios’

 

Find the lengths of the other two sides of a triangle when the length of one side is A45 and ac = 2.

ac2÷sin45(√0.5)=ab√8

ab√8×cos45(√0.5)=bc2

When A30 and ac √ 12, the length of the other two sides is calculated.

√12÷sin30(0.5)=ab√48

ab√48×cos30(√0.75)=bc6

Special angles of 30 degrees 45 degrees 60 degrees

*Isosceles and trigonometric functions

You have to play with the isosceles like a puzzle. The reason is that an isosceles triangle has a lot more things than you might think. For example, trigonometric functions, curve calculations, etc. ... There is a much easier way to find than integration.

The language of mathematics can be seen as the language between the universe and the real world. How can a language between the universe and the real world be so easy when all of our languages are not completely understood? It is important to understand each language word one by one.

abc①ac×bc×½=a→bc(a×2)×ad(1)=b

→abd②ac×bc=a→a×ad(1)=b

abd③bc(b)×cd(ad1-ac)