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Worksheet: Angle Sum and Difference Identities

Q1:

Evaluate c o s 1 5 .

  • A 6 2
  • B 6 + 2 4
  • C 6 2
  • D 6 + 2 4

Q2:

Evaluate c o s 1 0 5 .

  • A 6 + 2
  • B 6 + 2 4
  • C 6 2
  • D 6 + 2 4

Q3:

Evaluate c o s 1 6 5 .

  • A 6 + 2
  • B 6 + 2 4
  • C 6 2
  • D 6 + 2 4

Q4:

Evaluate c o s 1 9 5 .

  • A 6 2
  • B 6 + 2 4
  • C 6 + 2
  • D 6 + 2 4

Q5:

Evaluate c o s 2 5 5 .

  • A 6 2
  • B 6 2 4
  • C 6 2
  • D 6 + 2 4