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Prealgebra
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Precalculus
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Intermediate Algebra
| Status | Title | Difficulty |
| 1841. Line Intersection Point | Level 3 | |
| 1842. Trigonometric Sum Difference | Level 3 | |
| 1843. Line Plane Intersection Point | Level 3 | |
| 1844. Vectors Angle Determination 1 | Level 2 | |
| 1845. Arccot of Negative One | Level 1 | |
| 1846. Tangent Product Evaluation | Level 1 | |
| 1847. Trigonometric Equality Solution 2 | Level 5 | |
| 1848. Trigonometric Cosine Solution | Level 2 | |
| 1849. Triangle Probability Calculation | Level 5 | |
| 1850. Tangent Double Angle | Level 5 | |
| 1851. Vector Triple Product | Level 2 | |
| 1852. Triangle Cosine Value | Level 3 | |
| 1853. Dot Cross Maximum Value | Level 4 | |
| 1854. Tangent Equality Angle | Level 5 | |
| 1855. Trigonometric Equation Solution 3 | Level 5 | |
| 1856. Reflection Matrix Determinant | Level 5 | |
| 1857. Arctan of Negative Fraction | Level 2 | |
| 1858. Line Intersection Angle | Level 4 | |
| 1859. System Non Trivial Solution | Level 5 | |
| 1860. Trigonometric Equation Solutions 3 | Level 2 |