The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

Graphs of Sine and Cosine 1.2 An applet illustrating how the graphs of sine ... and midpoint methods, trapezoid rule, and Simpson's rule. Implementations of lefthand, righthand, and midpoint rules, ...

Calculate the length AB. Give the answer to one decimal place. Label the sides of the triangle \(o\), \(a\) and \(h\). Next choose the correct ratio from \(s^o_h~c^a_h~t^o_a\). The length \(h\) is ...