Topics › Precalculus › Inverse Trig Functions — Evaluate arcsin, arccos, arctan
Precalculus · F-BF

Inverse Trig Functions — Evaluate arcsin, arccos, arctan

arcsin(x) outputs angles in [−π/2, π/2]; arccos(x) in [0, π]; arctan(x) in (−π/2, π/2). Use the unit circle to evaluate at special values.

PrecalculusCommon Core HSF-BF.B.4F-BFVerified correct ✓

Worked examples

Evaluate arccos(−1) in degrees.
Answer: 180
Evaluate arctan(√3/3) in degrees.
Answer: 30

Every problem on Pounce is generated and checked by code — never a wrong answer key.

Master Inverse Trig Functions — Evaluate arcsin, arccos, arctan

Code-verified problems at exactly the right level, explained the way your kid learns.

Start your free trial 🐾

Build up to this

Exact Trig Values from the Unit CircleInverse Functions — Find and Verify

More Precalculus topics

Complex Numbers in Polar Form — r(cos θ + i sin θ)Multiply and Divide Complex Numbers in Polar FormDe Moivre's Theorem — Powers and Roots of Complex NumbersVectors — Components, Addition, and Scalar MultiplicationDot Product of Vectors — Magnitude and Angle Between VectorsMatrix Addition, Subtraction, and Scalar MultiplicationMatrix Multiplication — 2×2 and 2×1 Cases2×2 Matrix Inverse and Determinant