**See Also**

arctangent video, expressions video, functions video, inverse tangent video, inverse trigonometric functions video, trigonometric expressions video, trigonometric functions video.

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This math video tutorial gives a step by step explanation to a math problem on "Inverse Tangent 2".

Inverse tangent 2 video involves arctangent, expressions, functions, inverse tangent, inverse trigonometric functions, trigonometric expressions, trigonometric functions. The video tutorial is recommended for 7th Grade, 8th Grade, 9th Grade, 10th Grade, 11th Grade, and/or 12th Grade Math students studying Algebra, Trigonometry, Pre-Algebra, Pre-Calculus, and/or Advanced Algebra.

An expression is a combination of numbers, operators, grouping symbols (such as brackets and parentheses) and/or free variables and bound variables arranged in a meaningful way which can be evaluated. Bound variables are assigned values within the expression (they are for internal use) while free variables can take on values from outside the expression.

In mathematics, the trigonometric functions are functions of an angle. They are important in the study of triangles and modeling periodic phenomena, among many other applications. Trigonometric functions are commonly defined as ratios of two sides of a right triangle containing the angle, and can equivalently be defined as the lengths of various line segments from a unit circle.

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