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Mathwords: Inverse Tangent In other words, the range of tan -1 is restricted to (–90°, 90°) or Note: arctan refers to "arc tangent", or the radian measure of the arc on a circle corresponding to a given value of tangent
The trigonometry arctan () function - inverse tangent - math word . . . So the inverse of tan is arctan etc When we see "arctan x", we understand it as "the angle whose tangent is x" Means: The angle whose tangent is 0 577 is 30 degrees Use arctan when you know the tangent of an angle and want to know the actual angle In the above figure, click on 'reset'
Inverse Tangent Function (Arctangent) - Softschools. com The inverse is used to obtain the measure of an angle using the ratios from basic right triangle trigonometry The inverse of tangent is denoted as Arctangent or on a calculator it will appear as atan or tan-1 Note: this does NOT mean tangent raised to the negative one power Let's look at an application problem