Q:
# What is cos 0 degrees equal to?

**The cosine of zero degrees is equal to one.** The cosine is a trigonometric function that can be defined through the Pythagorean Theorem as the length of the side of a right triangle adjacent to an angle over the hypotenuse of the triangle.

The cosine of an angle can be found by calculating the ratio, or by calculating the value using the cosine function on a scientific or graphing calculator. The cosine is related to the trigonometric functions sine and tangent. The cosine function can be used to evaluate angles expressed in either degrees or radians. The inverse of the cosine function is known as arccos.

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Q:
## What is the cos of 90 degrees?

A: The cosine (cos) of 90 degrees is zero. This value is taken from the unit circle, a commonly used device in mathematics that assigns values to the trigonom... Full Answer >Filed Under: -
Q:
## What is integral cos 2?

A: The integral of cosine squared is equal to x/2 + (1/4)sin(2x) + C, where C is a constant. The integral can be solved by using the half-angle identity of th... Full Answer >Filed Under: -
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: -
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## How do you get cos theta from sin theta?

A: The pythagorean trigonometric identity can be used to compute cos(θ) when sin(θ) is known. The formula is sin²(θ) + cos²(θ) = 1. Thus, cos(θ) is computed b... Full Answer >Filed Under: