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Francés-Lengua extranjera

Trigonometrical ratios of right angles triangles

This unit offers an introduction to basic trigonometry such as trigonometrical ratios of acute angles. Students are expected to have some notion of angles and measuring angles as well as a basic under ...

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Francés-Lengua extranjera

Trigonometrical ratios

As Thales' theorem tells us, trigonometrical ratios of an angle do not depend on the right-angled triangle we choose. Therefore, we can choose a right-angled triangle whose hypotenuse is the radius of ...