math trigonometry |
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| navigate by keyword : algebra angle angles background blue child cosecant cot cotangent education equation formula graph handwritten lesson math mathematical mathematics paper pattern pencil school science sec secant study studying texture triangle triangles trigonometry vector white write |
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| Trigonometry (from Greek trigÃ
Ânon, triangle and metron, measure) is a branch of mathematics that studies relationships involving lengths and angles of triangles. |
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