## What is the value of sin 45 in trigonometry?

= 1 / 2

Sine 0° 0
Sine 30° or Sine π/6 1/2
Sine 45° or Sine π/4 1 / 2
Sine 60°or Sine π/3 3 / 2
Sine 90° or Sine π/2 1

What is Sohcatoa?

SOHCAHTOA is a mnemonic device used to remember the ratios of sine, cosine, and tangent in trigonometry.

### What does tan 45 mean?

Explanation: For tan 45 degrees, the angle 45° lies between 0° and 90° (First Quadrant). Since tangent function is positive in the first quadrant, thus tan 45° value = 1. Since the tangent function is a periodic function, we can represent tan 45° as, tan 45 degrees = tan(45° + n × 180°), n ∈ Z.

What is the exact value of tan 45?

The exact value of tan(45°) tan ( 45 ° ) is 1 .

#### How do you solve cos 45 degrees?

How can you evaluate the value of cos 45? We can use Pythagoras theorem to find the value of cos 45. Since, for a right angle, if the adjacent angles are 45 degrees, then the adjacent side and opposite side will be equal. Thus, we can find the value of cos 45 equal to 1/√2.

What is the exact value of sin 45 enter your answer as a simplified fraction?

The exact value of sin(45) is √22 .

## What is cosec in math?

Cosecant Formula. Cosecant is one of the six trigonometric ratios which is also denoted as cosec or csc. The cosecant formula is given by the length of the hypotenuse divided by the length of the opposite side in a right triangle.

What is csc on calculator?

The cosecant formula is: csc(α) = hypotenuse c opposite a. Thus, the cosecant of angle α in a right triangle is equal to the length of the hypotenuse c divided by the opposite side a. To solve csc, simply enter the length of the hypotenuse and opposite side, then solve.

### What is the value of cos0?

The value of cos 0 is 1. Here, we will discuss the value for cos 0 degrees and how the values are derived using the quadrants of a unit circle. The trigonometric functions are also known as an angle function that relates the angles of a triangle to the length of the triangle sides.

How do you find the value of sin 45?

How to Find the Value of Sin 45 Degrees? The value of sin 45 degrees can be calculated by constructing an angle of 45° 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 45° is equal to the y-coordinate (0.7071). ∴ sin 45° = 0.7071.

#### How do you solve tan 45?

To find the value of tan 45 degrees using the unit circle:

1. Rotate ‘r’ anticlockwise to form 45° angle with the positive x-axis.
2. The tan of 45 degrees equals the y-coordinate(0.7071) divided by x-coordinate(0.7071) of the point of intersection (0.7071, 0.7071) of unit circle and r.

How do you write tan 45 degrees?

The value of tan 45 degrees is 1. Tan 45 degrees in radians is written as tan (45° × π/180°), i.e., tan (π/4) or tan (0.785398. . .). In this article, we will discuss the methods to find the value of tan 45 degrees with examples. Tan 45° in radians: tan (π/4) or tan (0.7853981 . . .)