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Welcome to tg -145°, our post aboutthe tg minus 145 degrees.
For the tangent of -145 degrees we use the abbreviation tg for the trigonometric function together with the degree symbol °, and write it as tg -145°.
If you have been looking for what is tg -145°, or if you have been wondering about tg -145 degrees in radians, then you are right here, too.
In this post you can find the tg -145° value, along with identities.
Read on to learn all about the tg of -145°.
Tg Minus 145 Degrees
If you want to know what is tg -145 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 tg -145°:
tg -145° = 0.70021
tg -145 degrees = 0.70021
The tg of -145 degrees is 0.70021, the same as tg of -145 degrees in radians. To obtain -145 degrees in radian multiply -145° by $\pi$ / 180° = -29/36 $\pi$. Tg -145degrees = tg (-29/36 × $\pi)$.
Our results of tg-145° have been rounded to five decimal places. If you want tangent -145° with higher accuracy, then use the calculator below; our tool displays ten decimal places.
To calculate tg -145 degrees insert the angle -145 in the field labelled °, but if you want to calculate tg -145 in radians, then you have to press the swap unit button first.
Calculate tg [degrees]
The identities of tangent -145° are as follows:
= ctg (90° + 145°) = ctg 235°
-tg-145°
= tg 145° = -tg -145°
= ctg (90° – 145°) = ctg -55°
= tg (180° + 145°) = tg 325°
There are more formulas for the double angle (2 × -145°), half angle ((-145/2)°) as well as the sum, difference and products of two angles such as -145° and β.
You can locate all of them in the respective article found in the header menu. To find everything about tg 145° click the link. And here is all about ctg -145°, including, for instance, a converter.
In terms of the other five trigonometric functions, tg of -145° =
- $\pm\frac{\sin (-145^\circ)}{\sqrt{1 – \sin^{2} (-145^\circ})}$
- $\pm\frac{\sqrt{1 – \cos^{2} (-145^\circ)}}{\cos (-145^\circ)}$
- $\pm \sqrt{\sec^{2} (-145^\circ) – 1}$
- $\pm\frac{1}{\sqrt{\csc^2 (-145^\circ) – 1}}$
- $\frac{1}{ctg\hspace{3px}(-145^\circ)}$
As the cotangent function is the reciprocal of the tangent function, 1 / ctg -145° = tg-145°.
In the next part of this article we discuss the trigonometric significance of tg minus 145°, and there you can also learn what the search calculations form in the sidebar is used for.
What is tg -145°?
In a circle with the radius r, the horizontal axis x, and the vertical axis y, -145 degrees is the angle formed by the two sides x and r; r moving counterclockwise is the positive angle.
Applying the unit-circle definition found on our homepage, assumed r = 1, in the intersection of the point (x,y) and the circle, y = sin -145°, x = cos -145° and tg -145° = sin -145°/cos -145°.
Note that you can locate many terms including the tangent-145° value using the search form. On mobile devices you can find it by scrolling down. Enter, for instance, value of tg-145°.
Along the same lines, using the aforementioned form, can you look up terms such as tg -145° value, tg -145, tg-145° value and what is the tg of -145 degrees, just to name a few.
Given the periodicity of tangent of -145°, to determine the tangent of an angle < -180°, e.g. -865°, calculate tg -865° as tg (-865 Mod 180)° = tangent of -145°, or look it up with our form.
Conclusion
The frequently asked questions in the context include what is tg -145 degrees and what is the tg of -145 degrees for example; reading our content they are no-brainers.
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– Article written by Mark, last updated on February 26th, 2017