What Are Inverse Trig Functions?
Inverse trig functions calculate the angle θ given the ratio of triangle sides:
- Arcsin(x): Range [−π/2, π/2]
- Arccos(x): Range [0, π]
- Arctan(x): Range (−π/2, π/2)
Trigonometry 8 min read
Inverse Trig Functions: Arcsin, Arccos & Arctan Guide
Learn how inverse trigonometric functions (arcsin, arccos, arctan) work, their principal domain restrictions, and evaluation steps.
Published August 11, 2026
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Basic Math Tools STEM Editorial Team
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Updated: August 11, 2026
Related Interactive Calculators
Practice ToolsArcsine Calculator: Inverse Sine Tool
Calculate arcsine (sin⁻¹) in degrees, radians, and exact π multiples with interactive unit circle visualization and triangle ratios.
Arccos Calculator: Inverse Cosine in Radians & Degrees
Free online Arccos Calculator: Inverse Cosine in Radians & Degrees with step-by-step mathematical solutions, formulas, worked examples, and interactive calculator.
Arctan Calculator
Calculate inverse tangent (arctan / tan⁻¹) of any real number in exact π radians, decimal degrees, slope percentage, and 4-quadrant atan2(y, x).
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