## How do you find the value of cos3pi 4?

The value of cos 3pi/4 can be calculated by constructing an angle of 3π/4 radians with the x-axis, and then finding the coordinates of the corresponding point (-0.7071, 0.7071) on the unit circle. The value of cos 3pi/4 is equal to the x-coordinate (-0.7071). ∴ cos 3pi/4 = -0.7071.

**What is the exact value of cos11pi 12?**

-0.9659258

The value of cos 11pi/12 is -0.9659258. . .. Cos 11pi/12 radians in degrees is written as cos ((11π/12) × 180°/π), i.e., cos (165°).

### What quadrant is 11pi 12 in?

Quadrant II

Since the arc ((11pi)/12) is located in Quadrant II, only the negative answer is accepted.

**What is the exact value of cos 11π 4?**

The value of cos 11pi/4 is -0.7071067. . .. Cos 11pi/4 radians in degrees is written as cos ((11π/4) × 180°/π), i.e., cos (495°).

#### How do you find sin3pi 4?

The value of sin 3pi/4 can be calculated by constructing an angle of 3π/4 radians with the x-axis, and then finding the coordinates of the corresponding point (-0.7071, 0.7071) on the unit circle. The value of sin 3pi/4 is equal to the y-coordinate (0.7071). ∴ sin 3pi/4 = 0.7071.

**What is the value of cos 45 in trigonometry?**

The value of cos 45° is equal to 1/√2.

## How do you find the exact value of sin 13pi 12?

60 second clip suggested1:41Evaluate sin(13pi/12) Exactly reedit – YouTubeYouTube

**How do you break 11pi 12?**

First, split the angle into two angles where the values of the six trigonometric functions are known. In this case, 11π12 11 π 12 can be split into 2π3+π4 2 π 3 + π 4 . Use the sum formula for cosine to simplify the expression.

### How do you find 11pi 12 on the unit circle?

58 second clip suggested5:12Find Exact Value of cos 11 pi by 12 Compound Angle Formula …YouTube

**How many degrees is 17pi 12?**

255 degrees

To convert from radians in degrees we have to multiply by 180π . ⇒−17π12=−17π12⋅180π=−255 degrees.

#### How do you find 11pi 4 on the unit circle?

55 second clip suggested8:15Find degree measure of 11 pi/4 using the unit circle – YouTubeYouTube