Applying and Analyzing Trigonometric Functions

Find the exact value
cos(5π/3)

• ½
• √2/2
• √3/2
• 1

Find the exact value
csc(-5π/6)

• ½
• 0
• -2
• 1

cos (π/4)

• √3/2
• √2/2
• 1/2
• 1

sin (-45∘)

• √3/2
• -√2/2
• 1/2
• 1

sin(300∘)

• -√3/2
• -√2/2
• -1/2
• 1

cos(-2π/3)

• √3/2
• -√2/2
• -1/2
• 1

sin(11π/6)

• -1/2
• 1/2
• √3/2
• -√3/2

sin(120°)

• 0
• 1/2
• √3/2
• 1

The unit circle...

• Has center at (1,1)
• Has a circumference of 1
• Has a diameter of 1
• Has a radius of 1

225°=_____ radians?

• π/6
• π/4
• 5π/4
• -π/6