Trigonometry

• What is the cos of$π/6$?


  sqrt3/2
• What is the cos of $2π$?


  1
• What is the cos of $π/4$?


  sqrt2/2
• What is the cos of $π/3$?


  1/2
• What is the cos of $π/2$?


  0
• What is the sin of $2π$?


  0
• What is the sin of $π/6$?


  1/2
• What is the sin of $π/4$?


  sqrt2/2
• What is the sin of $π/3$?


  sqrt3/2
• What is the sin of $π/2$?


  1
• What is the cos of $2π/3$?


  -1/2
• What is the cos of $3π/4$?


  -sqrt2/2
• What is the cos of $5π/6$?


  -sqrt3/2
• What is the cos of $π$?


  -1
• What is the sin of $π$?


  0
• What is the sin of $5π/6$?


  1/2
• What is the sin of $3π/4$?


  sqrt2/2
• What is the sin of $2π/3$?


  sqrt3/2
• What is the cos of $7π/6$?


  -sqrt3/2
• What is the cos of $5π/4$?


  -sqrt2/2
• What is the cos of $4π/3$?


  -1/2
• What is the cos of $3π/2$?


  0
• What is the sin of $7π/6$?


  -1/2
• What is the sin of $5π/4$?


  -sqrt2/2
• What is the sin of $4π/3$?


  -sqrt3/2
• What is the sin of $3π/2$?


  -1
• What is the cos of $5π/3$?


  1/2
• What is the cos of $7π/4$?


  sqrt2/2
• What is the cos of $11π/6$?


  sqrt3/2
• What is the sin of $11π/6$?


  -1/2
• What is the sin of $5π/3$?


  -sqrt3/2
• What is the sin of $7π/4$?


  -sqrt2/2