The cosine (cos) function takes the angle Ɵ and ... The only equation that contains both \(o\) and \(h\) is the sine (sin) ratio. Practise finding angles in right-angled triangles with this ...

ADD - All (Sin, Cos, Tan) are positive SUGAR - Sin is positive ... us to calculate the values of trigonometric ratios for common angles such as 0°, 30°, 45°, 60°, and 90°.