Trigonometric Properties (II)

  • Cofunction Properties for Circular Functions:
  • Cofunction Properties for Trigonometric Functions:

  • Composite Argument Property:

    cos (A - B) = cosA cosB + sinA sinB
    cos (A + B) = cosA cosB - sinA sinB
    sin (A - B) = sinA cosB - cosA sinB
    sin (A + B) = sinA cosB + cosA sinB





  • Back to Formula