Tan30, tan60, I will ask for tan2, tan3, and so on

Tan30, tan60, I will ask for tan2, tan3, and so on

tanA=sinA/cosA
Finding trigonometric function of any acute angle needs calculus knowledge in advanced mathematics, specifically, Taylor formula
The specific analytical formula is as follows
sin(x)=x-x^3/3!+x^5/5!-x^7/7!+……
cos(x)=1-x^2/2!+x^4/4!-x^6/6!+……
Note: n! = 1 × 2 × 3 × ×n
The angle here is radian system (radian is defined as follows: two rays shoot from the center of the circle to the circle, forming an arc with an angle opposite to the angle. When the arc length is exactly equal to the radius of the circle, the radian of the angle between the two rays is 1.)