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Prealgebra
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Precalculus
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Intermediate Algebra
| Status | Title | Difficulty |
| 1821. Orthogonal Vector Condition | Level 3 | |
| 1822. Arcsine Sum Conversion | Level 2 | |
| 1823. Secant Tangent Sum | Level 4 | |
| 1824. Cosine Sine Equality | Level 5 | |
| 1825. Cosine Degree Conversion | Level 5 | |
| 1826. Vector Cross Product Dot | Level 3 | |
| 1827. Tetrahedron Vertex Coordinates | Level 4 | |
| 1828. Largest Rational Cosines | Level 5 | |
| 1829. Smallest Positive Angle | Level 2 | |
| 1830. Recursive Function Product | Level 5 | |
| 1831. Spherical Coordinate Transformation | Level 5 | |
| 1832. Arctan of Square Root | Level 1 | |
| 1833. Triangle Area Determinant | Level 5 | |
| 1834. Trigonometric Equation Solutions 2 | Level 4 | |
| 1835. Trigonometric Ratio Sum | Level 5 | |
| 1836. Tangent of Acute Angle | Level 2 | |
| 1837. Trigonometric Ratio Determination 2 | Level 3 | |
| 1838. Sine Product Evaluation | Level 2 | |
| 1839. Trigonometric Identity Simplification 3 | Level 1 | |
| 1840. Negative Sine Value | Level 1 |