Trigonometric functions and their signs Animation Play

Trigonometric functions of the angle 120° Animation Play

Trigonometric functions of the angle 45° Whiteboard exercise Play

Trigonometric functions of the general angle Student activity Play

Trigonometric functions of the sum and difference of angles (1) Class activity Play

Trigonometric functions of the sum and difference of angles (1) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (2) Whiteboard presentation Play

Trigonometric functions of the sum and difference of angles (2) Class activity Play

Trigonometric ratios in a right-angled triangle Class activity Play

Trigonometric ratios in a right-angled triangle Whiteboard presentation Play

Trigonometry of a general angle Whiteboard presentation Play

Trigonometry of a general angle Class activity Play

Two billiard balls collisions and the velocity vectors Whiteboard exercise Play

Use of a calculator Whiteboard presentation Play

Use of a calculator Class activity Play

Using new variables to solve trigonometric equations Whiteboard exercise Play

Using Simpson's composite rule Student activity Play

Using the calculator Student activity Play

Using the calculator Whiteboard exercise Play

Using the chain rule Whiteboard exercise Play

Using the double-angle formulas for the tangent to rewrite cosine Whiteboard exercise Play

Using the double-angle formulas for the tangent to rewrite sine and cosine Student activity Play

Using the mid-ordinate rule Whiteboard exercise Play

Using the mid-ordinate rule Student activity Play

Using the nth term rule Whiteboard exercise Play