What is cos 120 degree value?

What is cos 120 degree value?

-½ Value of Cos 120 is -½.

What is the sin and cos of 120?

2:594:21Find Sine, Cosine, and Tangent Values for 120 Degrees (Reference ...YouTubeInizio del clip suggeritoFine del clip suggeritoSo sine 120 degrees is equal to the y coordinate of this point which is square root 3/2 cosine 120MoreSo sine 120 degrees is equal to the y coordinate of this point which is square root 3/2 cosine 120 degrees is equal to the x coordinate of negative 1/2.

How do you simplify COS 120?

Cos 120 Value Since we are already aware of the trigonometric angle values for sin, cos and tan from 0 to 90. We will use the formula to find the value of cos 120. 1. Cos 120° = cos (180° – 60°) = -cos 60 = -1/2.

What is the cot of 120 degrees?

-0.5774 What is Cot 120 Degrees? Cot 120 degrees is the value of cotangent trigonometric function for an angle equal to 120 degrees. The value of cot 120° is -(1/√3) or -0.5774 (approx).

How do you find sin 120 degrees?

Using the trigonometry formula, sin (90 + a) = cos a, we can find the sin 120 value. We know that the value of cos 30 degrees is √3/2. Therefore, sin 120° = √3/2.

How do you find COS 120 without a calculator?

Draw a unit circle (circle with radius one) and draw 120 degrees. Then find the reference angle (60 degrees). Since 120 degrees is in the second quadrant, the x values will be negative and the y values will be positive. This means that cos120 will be negative.

How do you find sin 120 without a calculator?

Using the trigonometry formula, sin (90 + a) = cos a, we can find the sin 120 value. We know that the value of cos 30 degrees is √3/2. Therefore, sin 120° = √3/2.

How do you find cot 120 without a calculator?

0:001:46cot120 | cot(120)| cotangent of 120 degree | First Method - YouTubeYouTube

What is cot degree?

A cotangent of an angle α is also equal to the ratio between its cosine and sine, so cotα = cosα / sinα. Following from the definition, the function results in an undefined value at certain angles, like 0°, 180°, 360°, and so on.

What is value of sin30?

The value of sin 30 degrees is 0.5. Sin 30 is also written as sin π/6, in radians. The trigonometric function also called as an angle function relates the angles of a triangle to the length of its sides.