# What is the exact value of sin 240 degrees?

## What is the exact value of sin 240 degrees?

sin (240) = sin (60 + 180) = – sin 60.

What is cos 240 equal to?

-0.5
The value of cos 240 degrees is -0.5. Cos 240 degrees in radians is written as cos (240° × π/180°), i.e., cos (4π/3) or cos (4.188790. . .). In this article, we will discuss the methods to find the value of cos 240 degrees with examples.

How do you simplify sin 240?

Explanation: For sin 240 degrees, the angle 240° lies between 180° and 270° (Third Quadrant). Since sine function is negative in the third quadrant, thus sin 240° value = -(√3/2) or -0.8660254. . .

### What angle has the same sine as 240?

1 Expert Answer The reference angle for 240 is 60. So the other angle is in quadrant II, with reference angle 60. The angle is 120.

How do you find tan 240?

For tan 240 degrees, the angle 240° lies between 180° and 270° (Third Quadrant). Since tangent function is positive in the third quadrant, thus tan 240° value = √3 or 1.7320508. . .

What is the cot of 240 degrees?

0.5774
Cot 240 degrees is the value of cotangent trigonometric function for an angle equal to 240 degrees. The value of cot 240° is 1/√3 or 0.5774 (approx).

#### What is the exact value of sin 225?

Trigonometric Function Values of Special Angles

180° π 0
210° 7π/6 -1/2
225° 5π/4 -√2/2
240° 4π/3 -√3/2

In what quadrant does 240 degrees lie?

The Point P(240 Degrees) Is In the Third Quadrant.

How do you evaluate tan 240 without a calculator?

## What is the sin of 240 radians?

240 is an obtuse angle since it is greater than 90°. sin (240) = -√ 3 /2. In Microsoft Excel or Google Sheets, you write this function as =SIN (RADIANS (240)) Important Angle Summary. θ°. θ radians.

How do you find the value of sin 45°?

From geometry, ∠ABC = ∠BAC = 45°. If BC = k then AB = k. ∴ AB 2 + BC 2 = AC 2 (By Pythagoras Theorem) ∴ k 2 + k 2 = AC 2, or AC 2 =2k 2. ∴ AC = √2 k. Now, sin 45° = sin C= p/h = AB/AC = k/√2 k = 1/√2

How do you find Sine from sin 150?

If sin 150° is given to find out, we can write or elaborate this as, Simplify sin 150° into sin (90° + 60°). Now as we have an odd coefficient of 90°, sin changes to cos. Also, it is covering 90° in the first quadrant and again added 60° leads to the second quadrant. In the second quadrant, we know sine is positive.

### What is the value of sin 60 + 180?

Explanation: Trig unit circle –>. sin (240) = sin (60 + 180) = – sin 60.