Sec -139°

Welcome to sec -139°, our post aboutthe secant of -139 degrees.

For the secant of minus 139 degrees we use the abbreviation sec for the trigonometric function together with the degree symbol °, and write it as sec -139°.

If you have been looking for what is sec -139°, or if you have been wondering about sec -139 degrees in radians, then you are right here, too.

In this post you can find the sec -139° value, along with identities.

Read on to learn all about the sec of -139°.

Sec Minus 139 Degrees

If you want to know what is sec -139 degrees in terms of trigonometry, then navigate straight to the explanations in the next paragraph; what’s ahead in this section is the value of sec -139°:

sec-139° = -1.32501
sec -139° = -1.32501
sec -139 degrees = -1.32501

The sec of -139 degrees is -1.32501, the same as sec of -139 degrees in radians. To obtain -139 degrees in radian multiply -139° by $\pi$ / 180° = -139/180 $\pi$. Sec -139degrees = sec (-139/180 × $\pi)$.

Our results of sec-139° have been rounded to five decimal places. If you want secant -139° with higher accuracy, then use the calculator below; our tool displays ten decimal places.

To calculate sec -139 degrees insert the angle -139 in the field labelled °, but if you want to calculate sec -139 in radians, then you have to press the swap unit button first.

A Really Cool Secant Calculator and Useful Information! Please ReTweet. Click To TweetBesides sec-139°, similar trigonometric calculations on our site include, but are not limited, to:

• Sec 13Pi/12
• Sec -138°
• Sec 709°

Note that sec-139° is periodic: sec (-139° + n × 360°) = sec -139 degrees, n$\hspace{5px} \in \hspace{5px} \mathbb{Z}$.

In terms of the other five trigonometric functions, sec of -139° =

• $\pm\frac{1}{\sqrt{1 – \sin^{2} (-139^\circ)}}$
• $\pm \sqrt{1+\tan^{2} (-139 ^\circ)}$
• $\pm\frac{\csc (-139^\circ)}{\sqrt{\csc^{2} (-139^\circ) – 1}}$
• $\frac{1}{\cos (-139^\circ)}$
• $\pm\frac{\sqrt{1+\cot^{2} (-139^\circ)} }{\cot (-139^\circ)}$

As the secant function is the reciprocal of the cosine function, 1 / cos -139° = sec-139°.

In the next part we discuss the trigonometric significance of sec minus 139°, and there you can also learn what the search calculations form in the sidebar is used for.

What is sec -139°?

In a circle with the radius r, the horizontal axis x, and the vertical axis y, -139 degrees 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 -139°.

Note that you can locate many terms including the secant-139° value using the search form. On mobile devices you can find it by scrolling down. Enter, for instance, value of sec-139°.

Along the same lines, using the aforementioned form, can you look up terms such as sec -139° value, sec -139, sec-139° value and what is the sec of -139 degrees, just to name a few.

Given the periodic property of secant of -139°, to determine the secant of an angle < -360°, e.g. -859°, calculate sec -859° as sec (-859 Mod 360)° = secant of -139°, or use our form.

Conclusion

The frequently asked questions in the context include what is sec -139 degrees and what is the sec of -139 degrees for example; reading our content they are no-brainers.

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– Article written by Mark, last updated on February 23rd, 2017