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Welcome to **cos 17pi/12**, our post aboutthe cosine of 17pi/12.

For the cosine of 17pi/12 we use the abbreviation *cos* for the trigonometric function and write it as cos 17pi/12.

If you have been looking for *what is cos 17pi/12*, or if you have been wondering about cos 17pi/12 radians in degrees, then you are right here, too.

In this post you can find the cos 17pi/12 value, along with identities.

Read on to learn all about the cos of 17pi/12.

## Cos 17Pi/12 Radians

If you want to know *what is cos 17pi/12 radians* in terms of trigonometry, then navigate straight to the explanations in the next paragraph; what’s ahead in this section is the value of cos 17pi/12:

cos 17pi/12 = -(√6-√2)/4

cos 17pi/12 radians = -(√6-√2)/4

The cos of 17pi/12 radians is -(√6-√2)/4, the same as cos of 17pi/12 radians in degrees. To change 17pi/12 radians to degrees multiply 17pi/12 by by 180° / $\pi$ = 255°. Cos 17pi/12 = cos 255 degrees.

Our results of cos17pi/12 have been rounded to five decimal places. If you want cosine 17pi/12 with higher accuracy, then use the calculator below; our tool displays ten decimal places.

To calculate cos 17pi/12 radians insert the angle 17pi/12 in decimal notation, but if you want to calculate cos 17pi/12 in degrees, then you have to press the swap unit button first.

### Calculate cos [radians]

The identities of cosine 17pi/12 are as follows:

= sin (pi/2 + 17pi/12) = sin 23/12 pi

= sin (pi/2 – 17pi/12) = sin -11/12 pi

-cos17pi/12

= cos (pi + 17pi/12) = cos 29/12 pi

= cos (pi – 17pi/12) = cos -5/12 pi

*n*× 2pi) = cos 17pi/12, n$\hspace{5px} \in \hspace{5px} \mathbb{Z}$.

There are more formulas for the double angle (2 × 17pi/12), half angle ((17pi/12/2)) as well as the sum, difference and products of two angles such as 17pi/12 and β.

You can locate all of them in the respective article found in the header menu. To find everything about cos -17pi/12 click the link. And here is all about sin 17pi/12, including, for instance, a converter.

In terms of the other five trigonometric functions, cos of 17pi/12 =

- $\pm \sqrt{1-\sin^{2} 17\pi/12 }$
- $\pm\frac{1}{\sqrt{1 + \tan^{2} 17\pi/12}}$
- $\pm\frac{\cot 17\pi/12}{\sqrt{1 + \cot^{2} 17\pi/12}}$
- $\frac{1}{\sec 17\pi/12}$
- $\pm\frac{\sqrt{\csc^{2} (17\pi/12) – 1} }{\csc 17\pi/12}$

As the cosine function is the reciprocal of the secant function, 1 / sec 17pi/12 = cos17pi/12.

In the next part we discuss the trigonometric significance of cos17pi/12, and there you can also learn what the search calculations form in the sidebar is used for.

## What is cos 17Pi/12?

In a circle with the radius r, the horizontal axis x, and the vertical axis y, 17pi/12 is the angle formed by the two sides x and r; r moving counterclockwise is the positive angle.

As detailed in the unit-circle definition on our homepage, assumed r = 1, in the intersection of the point (x,y) and the circle, x = cos 17pi/12.

Note that you can locate many terms including the cosine17pi/12 value using the search form. On mobile devices you can find it by scrolling down. Enter, for instance, value of cos17pi/12.

Along the same lines, using the aforementioned form, can you look up terms such as cos 17pi/12 value, cos 17pi/12, cos17pi/12 value and *what is the cos of 17pi/12 radians*, just to name a few.

Given the periodic property of cosine of 17pi/12, to determine the cosine of an angle > 2pi, e.g. 65/12 pi, calculate cos 65/12 pi as cos (65/12 pi mod 2pi) = cosine of 17pi/12, or look it up with our form.

## Conclusion

The frequently asked questions in the context include *what is cos 17pi/12 radians* and *what is the cos of 17pi/12 degrees* for example; reading our content they are no-brainers.

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– Article written by Mark, last updated on February 26th, 2017