Question

Что такое cosaA=-1/2.И сколько это в градусах?

Answer 1

CosA=-1/2. 

СosА-это косинус некого угла А.

CosA=-1/2. Равен 2пи/3

Answer 2

это кос примоугольного треугольника в градусах это 60

Answer 3

cosaA is an equation that represents the cosine of angle A. In this case, cosaA = -1/2. To determine the value of angle A in degrees, we need to find the inverse cosine (also known as arccosine) of -1/2.

The inverse cosine function, denoted as acos, returns the angle whose cosine is a given value. In this case, we want to find the angle whose cosine is -1/2.

Using a calculator or a programming language with trigonometric functions, we can find the value of angle A in degrees by evaluating acos(-1/2). The result is approximately 120 degrees.

Therefore, cosaA = -1/2 corresponds to an angle A of approximately 120 degrees.