Using the calculator Student activity Play

Using the calculator Whiteboard exercise Play

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

Using the law of sines Whiteboard exercise Play

Using the sine rule Whiteboard exercise Play

Using the sine rule Student activity Play

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

Values of the sine and the cosine Animation Play

Vertical stretching and shrinking Animation Play