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## What is value of cos 45 answer?

The exact value of cos(45°) is √(2) / 2.

## What is sin 45 as a fraction?

The exact value of sin(45°) sin ( 45 ° ) is √22 .

## What is the formula of Cos 45?

Cos 45° Value The approximate value of cos 45 is equal to 0.7071. Therefore, 0.7071 or 1/√2 is a value of a trigonometric function or trigonometric ratio of standard angle (45 degrees).

## What is the sin of 45 in radical form?

Sin 45° = \sqrt{2/4} = 1/\sqrt{2}

Sine 0° 0
Sine 45° or Sine π/4 1/\sqrt{2}
Sine 60°or Sine π/3 \sqrt{3}/2
Sine 90° or Sine π/2 1
Sine 120° or Sine 2π/3 \sqrt{3}/2

## What is the value of sec 45 degree?

Answer: The exact value of sec 45° is √2.

## Which of the following is equal to SEC (- 45?

The exact value of sec(45) is 2√2 .

## What CSC 45?

The exact value of csc(45°) csc ( 45 ° ) is √2 .

## What is SEC O?

The secant of angle zero degrees is a value, which represents the quotient of length of hypotenuse by the length of adjacent side when the angle of a right triangle is equal to zero degrees. The secant of zero degrees can be expressed in two other mathematical forms in trigonometry.

## What is value of SEC?

For every trigonometric function, there is always an inverse function that works in reverse. These all inverse functions have the name as the arc in starting. The inverse name of sec is arcsec. The value of Secant 90 degree cannot be calculated and is undefined, i.e. infinity in the trigonometric table.

## How do you find the value of sec 0?

Trigonometry Examples The exact value of sec(0) is 1 .

## What is secant squared 0?

The secant is the reciprocal of the cosine. The cosine of 0 is well-defined, and is 1. Therefore, the secant of 0 is also 1. And the square of the secant of 0 is 1² = 1.

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## How do you prove that sin 0 is 0?

According to the fundamental definition of the sin function, it can be expressed in ratio form of lengths of the opposite side and hypotenuse. In fact, the sine function is written as ⁡ when the angle of a right triangle is zero grades. In a zero degree right triangle, the length of opposite side is zero.

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## How do you calculate sin 90?

All triangles have 3 angles that add to 180 degrees. Therefore, if one angle is 90 degrees we can figure out Sin Theta = Cos (90 – Theta) and Cos Theta = Sin (90 – Theta).

## What is the value of sin 180 in trigonometry?

The exact value of sin 180 is zero. Sine is known to be one of the primary trigonometric functions which help in determining the angle or sides of a right-angled triangle. It is also called trigonometric ratio.

## How do you solve COS 180 degrees?

The value of sin 90 degree is 1. Therefore, the value of cos 180° is -1. The value of trigonometric ratios for different angles are given for the reference….