Freeflows
All Problems
Prealgebra
Number
Theory
Counting and Probability
Precalculus
Geometry
Algebra
Intermediate Algebra
| Status | Title | Difficulty |
| 1801. Spherical Coordinates Cosine | Level 3 | |
| 1802. Matrix Inverse Constants | Level 3 | |
| 1803. Inverse Matrix Determination | Level 4 | |
| 1804. Cosine Quadrant Tangent | Level 2 | |
| 1805. Vector Projection Magnitude | Level 5 | |
| 1806. Trigonometric Equality Solution 1 | Level 2 | |
| 1807. Cosine Product Simplification 2 | Level 3 | |
| 1808. Tangent Equation Solutions | Level 5 | |
| 1809. Vector Magnitude Squared | Level 4 | |
| 1810. Complex Polynomial Sum | Level 5 | |
| 1811. Trigonometric Equation Solutions 1 | Level 5 | |
| 1812. Tangent Product Solution | Level 5 | |
| 1813. Projection Vector Determination | Level 2 | |
| 1814. Triangle Area Calculation 2 | Level 4 | |
| 1815. Point to Plane Distance | Level 2 | |
| 1816. Tangent Angle Calculation 2 | Level 3 | |
| 1817. Trigonometric Ratio Determination 1 | Level 5 | |
| 1818. Minimum Dot Product | Level 3 | |
| 1819. Polar Graph Min X Coordinate | Level 5 | |
| 1820. Orthogonal Vector Ratio | Level 3 |