I. Gelfand
- Auteur
Boeken van I. Gelfand
I. Gelfand
I.M. Gelfand
Mark Saul
Trigonometry
€ 37,59
In a sense, trigonometry sits at the center of high school mathematics. It originates in the study of geometry when we investigate the ratios of sides in similar right triangles, or when we look at the relationship between a chord of a circle and its arc.
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