Evaluation and Converting Trig Values on the Unit Circle

sin (π/2)

• √3/2
• √2/2
• 1/2
• 1

cos (π/4)

• √3/2
• √2/2
• 1/2
• 1

cos (π/6)

• √3/2
• √2/2
• 1/2
• 1

sin(π/3)

• √3/2
• √2/2
• 1/2
• 1

cos(π)

• √3/2
• -√2/2
• -1
• 1

sin(5π/3)

• -√3/2
• -√2/2
• -1/2
• √3/2

cos(5π/3)

• -√2/2
• -1/2
• 1/2
• √3/2

cos(7π/6)

• -√2/2
• 1/2
• √3/2
• -√3/2

sin(11π/6)

• -1/2
• 1/2
• √3/2
• -√3/2

cos(5π/4)

• -1/2
• √3/2
• √2/2
• -√2/2