830 Jan 1
Trigonometry expanded
Baghdad, IraqHabash_al-Hasib_al-Marwazi described the trigonometric ratios: sine, cosine, tangent and cotangent
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Last Updated: Mon Aug 29 2022
Habash_al-Hasib_al-Marwazi described the trigonometric ratios: sine, cosine, tangent and cotangent
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