For the inverse trigonometric feature of cosine 1/2 we normally employ the abbreviation arccos and also write it as arccos 1/2 or arccos(1/2).

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If you have actually been in search of what is arccos 1/2, either in degrees or radians, or if you have actually been wondering about the inverse of cos 1/2, then you are ideal here, as well.

In this post you deserve to find the angle arccosine of 1/2, along with identities.

Read on to learn all around the arccos of 1/2.

Arccos of 1/2

If you want to recognize what is arccos 1/2 in terms of trigonomeattempt, inspect out the explacountries in the last paragraph; ahead in this area is the value of arccosine(1/2):

arccos 1/2 = π/3 rad = 60°arccosine 1/2 = π/3 rad = 60 °arccosine of 1/2 = π/3 radians = 60 degrees" onclick="if (!window.__cfRLUnblockHandlers) rerotate false; rerotate fbs_click()" target="_blank" rel="nofollow noopener noreferrer" data-cf-modified-32d3d03440e81729d061a424-="">Share on Facebook

The arccos of 1/2 is π/3 radians, and also the worth in degrees is 60°. To change the outcome from the unit radian to the unit level multiply the angle by 180° / $pi$ and attain 60°.

Our results above contain fractions of π for the results in radian, and are precise worths otherwise. If you compute arccos(1/2), and also any type of other angle, using the calculator below, then the worth will certainly be rounded to ten decimal areas.

To achieve the angle in degrees insert 1/2 as decimal in the area labelled “x”. However, if you desire to be provided the angle adjacent to 1/2 in radians, then you have to press the swap units button.

Calculate arccos x

A Really Cool Arccosine Calculator and also Useful Information! Please ReTweet. Click To TweetA Really Cool Arccosine Calculator and also Useful Information! Please ReTweet. Click To TweetAcomponent from the inverse of cos 1/2, equivalent trigonometric calculations include:

The identities of arccosine 1/2 are as follows: arccos(1/2) =

$fracpi2$ – arcsin(1/2) ⇔ 90°- arcsin(1/2) $pi$ – arccos(-1/2) ⇔ 180° – arcos(-1/2) arcsec(1/1/2) $arcsin(sqrt1-(1/2)^2)$ $2arctan(fracsqrt1-(1/2)^21+(1/2))$

The limitless series of arccos 1/2 is: $fracpi2$ – $sum_n=0^infty frac(2n)!2^2n(n!)^2(2n+1)(1/2)^2n+1$.

Next, we talk about the derivative of arccos x for x = 1/2. In the following paragraph you can further learn what the search calculations create in the sidebar is offered for.

Derivative of arccos 1/2

The derivative of arccos 1/2 is specifically useful to calculate the inverse cosine 1/2 as an integral.

The formula for x is (arccos x)’ = – $frac1sqrt1-x^2$, x ≠ -1,1, so for x = 1/2 the derivative amounts to -1.1547005384.

Using the arccos 1/2 derivative, we can calculate the angle as a definite integral:

arccos 1/2 = $int_1/2^1frac1sqrt1-z^2dz$.

The relationship of arccos of 1/2 and also the trigonometric functions sin, cos and also tan is:

sin(arccosine(1/2)) =$sqrt1-(1/2)^2$ cos(arccosine(1/2)) = 1/2 tan(arccosine(1/2)) = $fracsqrt1-(1/2)^21/2$

Note that you can find many kind of terms including the arccosine(1/2) value using the search develop. On mobile tools you deserve to discover it by scrolling dvery own. Go into, for circumstances, arccos1/2 angle.

Using the previously mentioned create in the very same way, you can additionally look up terms including derivative of inverse cosine 1/2, inverse cosine 1/2, and derivative of arccos 1/2, just to name a couple of.

In the following part of this article we discuss the trigonometric meaning of arccosine 1/2, and also tright here we additionally define the difference between the inverse and the reciprocal of cos 1/2.

What is arccos 1/2?

In a triangle which has actually one angle of 90 levels, the cosine of the angle α is the ratio of the length of the nearby side a to the size of the hypotenuse h: cos α = a/h.

In a circle through the radius r, the horizontal axis x, and also the vertical axis y, α is the angle formed by the 2 sides x and r; r moving counterclockwise defines the positive angle.

As adheres to from the unit-circle interpretation on our homeweb page, assumed r = 1, in the intersection of the allude (x,y) and also the circle, x = cos α = 1/2 / r = 1/2. The angle whose cosine value equates to 1/2 is α.

In the interval <0, π> or <0°, 180°>, tright here is just one α whose arccosine worth amounts to 1/2. For that interval we specify the feature which determines the worth of α as y = arccos(1/2)." onclick="if (!window.__cfRLUnblockHandlers) rerotate false; return fbs_click()" target="_blank" rel="nofollow noopener noreferrer" data-cf-modified-32d3d03440e81729d061a424-="">Share on Facebook

From the definition of arccos(1/2) adheres to that the inverse attribute y-1 = cos(y) = 1/2. Observe that the reciprocal function of cos(y),(cos(y))-1 is 1/cos(y).

Avoid misconceptions and remember (cos(y))-1 = 1/cos(y) ≠ cos-1(y) = arccos(1/2). And make sure to understand that the trigonometric attribute y=arccos(x) is identified on a limited domajor, where it evaluates to a single worth only, referred to as the primary value:

In order to be injective, also known as one-to-one function, y = arccos(x) if and only if cos y = x and 0 ≤ y ≤ π. The domajor of x is −1 ≤ x ≤ 1.


The generally asked concerns in the conmessage encompass what is arccos 1/2 degrees and what is the inverse cosine 1/2 for example; analysis our content they are no-brainers.

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