## What is the value of sin 3pi by 4?

0.7071

Sin 3pi/4 is the value of sine trigonometric function for an angle equal to 3pi/4 radians. The value of sin 3pi/4 is 1/√2 or 0.7071 (approx).

**What is the exact value of 3pi 4?**

Explanation: For cos 3pi/4, the angle 3pi/4 lies between pi/2 and pi (Second Quadrant). Since cosine function is negative in the second quadrant, thus cos 3pi/4 value = −(1/√2) or -0.7071067. . . Since the cosine function is a periodic function, we can represent cos 3pi/4 as, cos 3pi/4 = cos(3pi/4 + n × 2pi), n ∈ Z.

**What is the exact value of sin 5π 4?**

-0.7071

What is Sin 5pi/4? Sin 5pi/4 is the value of sine trigonometric function for an angle equal to 5pi/4 radians. The value of sin 5pi/4 is -(1/√2) or -0.7071 (approx).

### How do you find the trigonometric ratio of 3pi 4?

sin (3π4)=sin(π−π4)=sin(π4)=1√2 . Like wise, cos (3π4)=cos(π−π4)=−cos(π4)=−1√2 .

**What degree is 3pi 4?**

Therefore by substitution 3×π4 is equal to 3×1804 which equals 135 degrees.

**How do you solve sin 3pi?**

The value of sin 3pi is equal to the y-coordinate (0). ∴ sin 3pi = 0.

## Is 3pi 4 a rational number?

1 Answer. 3π is irrational.

**How many degrees is 5π 4 radians?**

ar=αd⋅π180° . In our case: ad=54π⋅180°π=225° .

**What is the reference angle for 3π 4?**

First Quadrant Second Quadrant Third Quadrant Fourth Quadrant Example 1: The reference angle of θ = 3π/4 and ρ = −3π/4 are both π/4.

### What is 3x 4 radians converted to degrees?

So: multiply by 180 , then divide by π . To convert your problem, the answer would be 135∘ . Hope this helped!

**What quadrant does 3pi 4 lie in?**

The angle is in the second quadrant.

**What is the exact value of sin 3pi 3?**

0

The value of sin 3pi is equal to the y-coordinate (0). ∴ sin 3pi = 0.

## Is 3π a real number?

π belongs to the set of irrational numbers. Therefore it is never true that 3π is a rational number.

**Is 5π a irrational number?**

5π is an irrational number. Explanation: A rational number is a number that is represented in fraction form i.e. p/q form. Repeating decimals are considered rational numbers because they can be written in the ratio form of two integers.

**How do you evaluate sin 3pi?**

The value of sin 3pi can be calculated by constructing an angle of 3π radians with the x-axis, and then finding the coordinates of the corresponding point (-1, 0) on the unit circle. The value of sin 3pi is equal to the y-coordinate (0). ∴ sin 3pi = 0.

### What is 3pi 4 radians converted to degrees?

**What are the sine cosine and tangent of 3pi 4?**

The given angle θ = 3 pi over 4 radians lies in the second quadrant because it is less than 𝜋. Therefore, the sine, cosine and tangent of θ = 3 pi over 4 radians are √22,−√22and−1 2 2 , − 2 2 a n d − 1 .

**In which quadrant does the terminal side of a 3π 4?**

The Point P(3Pi/4) Is In the Second Quadrant.