Proving trigonometric identities Student activity Play

Proving trigonometric identity using the Pythagorean identity Whiteboard exercise Play

Solving simple trigonometric equations Whiteboard presentation Play

Solving simple trigonometric equations Class activity Play

Some consequences of the identities Student activity Play

Sum and difference identities for the cosine Student activity Play

Sum and difference identities for the cosine Whiteboard exercise Play

Sum and difference identities for the sine Student activity Play

Sum and difference identities for the sine Animation Play

Sum and difference identities for the tangent Animation Play

Sum and difference identities for the tangent Student activity Play

Sum and difference identities for the tangent Whiteboard exercise Play

The identities of the trigonometric functions Animation Play

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

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

Trigonometric identities Student activity Play

Trigonometric identities Whiteboard exercise Play

Trigonometric identities Whiteboard exercise Play

Trigonometric identities – investigations Student activity Play

Trigonometric identities – investigations Simulation Play

Using the sum and difference identities for the sine and cosine Whiteboard exercise Play

Using trigonometric identities Whiteboard exercise Play

Using trigonometric identities Whiteboard exercise Play