Q:
# What Is Cos 30 Degrees?

**The cosine of 30 degrees is 0.86.** It is also expressed as the square root of three divided by two. The cosine of an angle is calculated by dividing the length of the side of a right triangle adjacent to the acute angle by the length of the hypotenuse.

The cosine is a trigonometric function. Other functions used in trigonometry are tangent and cosine, and all of these functions are related to one another. The tangent is calculated as the sine divided by the cosine. The cosine is the reverse of the sine and is equal to the quotient of the length of the side of a right triangle opposite the acute angle divided by the length of the hypotenuse.

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Q:
## What Is the Integral of Cos 2x?

A: The integral of cos(2x) is 1/2 x sin(2x) + C, where C is equal to a constant. The integral of the function cos(2x) can be determined by using the integrati... Full Answer >Filed Under: -
Q:
## How Do You Determine Cosine Values?

A: To determine the value of the cosine of an angle in a right triangle, divide the length of the side adjacent to the angle by the length of the hypotenuse. ... Full Answer >Filed Under: -
Q:
## What Does Cosine Mean?

A: The cosine function is one of the three basic functions used in trigonometry. The cosine of a right triangle is found by taking the ratio of the length of ... Full Answer >Filed Under: -
Q:
## What Is Sine Squared Plus Cosine Squared?

A: The sum of sine squared plus cosine squared is 1. While the sine is calculated by dividing the length of the side opposite the acute angle by the hypotenus... Full Answer >Filed Under: