Applying the sum and difference identities for the sine Whiteboard exercise Play

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

Applying the sum and difference identities for the sine and cosine Student activity Play

Applying the sum and difference identities for the tangent Student activity Play

Applying the sum and difference identities for the tangent Whiteboard exercise Play

Applying trigonometric identities to equations Whiteboard exercise Play

Applying trigonometric identities to equations Student activity Play

Basic trigonometric identities Student activity Play

Basic trigonometric identities Whiteboard exercise Play

Double-angle formulas Class activity Play

Double-angle formulas Whiteboard presentation Play

Identities for trigonometric functions Class activity Play

Identities for trigonometric functions Whiteboard presentation Play

Identities in trigonometric equations Animation Play

Proving identities Student activity Play

Proving identities Whiteboard exercise Play

Proving trigonometric identities Whiteboard exercise Play

Proving trigonometric identities Animation Play

Proving trigonometric identities Student activity 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