Question

Пожалуйста дайте понятия sin,cos,tg,ctg

Answer 1

Синус (sin(a)) — это отношение противолежащего катета к гипотенузе;
Косинус (cos(a)) - это отношение прилежащего катета к гипотенузе;
Тангенс (tg(a)) — это отношение противолежащего катета к прилежащему катету;
Другое (равносильное) определение: тангенсом острого угла называется отношение синуса угла к его косинусу;
tg(a)=sin(a)/cos(a)

Котангенс (ctg(a)) — это отношение прилежащего катета к противолежащему.
Другое (равносильное) определение: котангенсом острого угла называется отношение косинуса угла к его синусу;

Answer 2

Я точно незнаю но перепеши тебе это надо будет

Answer 3

Sin, Cos, Tg, Ctg

Sin, cos, tg, and ctg are mathematical functions commonly used in trigonometry to calculate the ratios of sides of a right triangle. These functions are based on the relationships between the angles and the sides of a triangle.

- Sin (sine): The sine of an angle is the ratio of the length of the side opposite the angle to the length of the hypotenuse of a right triangle. It is denoted as sin(x) or sin θ. The sine function takes an angle as input and returns a value between -1 and 1. The sine function is periodic with a period of 360 degrees or 2π radians.

- Cos (cosine): The cosine of an angle is the ratio of the length of the side adjacent to the angle to the length of the hypotenuse of a right triangle. It is denoted as cos(x) or cos θ. The cosine function takes an angle as input and returns a value between -1 and 1. Like the sine function, the cosine function is also periodic with a period of 360 degrees or 2π radians.

- Tg (tangent): The tangent of an angle is the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle in a right triangle. It is denoted as tg(x) or tan θ. The tangent function takes an angle as input and returns a value that can be positive, negative, or undefined. The tangent function is periodic with a period of 180 degrees or π radians.

- Ctg (cotangent): The cotangent of an angle is the reciprocal of the tangent of the angle. It is the ratio of the length of the side adjacent to the angle to the length of the side opposite the angle in a right triangle. It is denoted as ctg(x) or cot θ. The cotangent function takes an angle as input and returns a value that can be positive, negative, or undefined. The cotangent function is also periodic with a period of 180 degrees or π radians.

These trigonometric functions are widely used in various fields such as physics, engineering, and mathematics to solve problems involving angles and triangles. They have applications in areas such as navigation, geometry, wave analysis, and more.

Please let me know if you have any further questions!