Fototapeta Trigonometric circle divided into four quadrants.Versatile trigonometry cheat sheet.Determination of signs of functions sine,cosine,tangent and cotangent by quarters.

Trigonometric circle divided into four quadrants.Versatile trigonometry cheat sheet.Determination of signs of functions sine,cosine,tangent and cotangent by quarters.

Numer zdjęcia: 408836157, autor: © Ольга Фурманюк

Tytuł: Trigonometric circle divided into four quadrants.Versatile trigonometry cheat sheet.Determination of signs of functions sine,cosine,tangent and cotangent by quarters.

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