Aqa a level pure maths

• Law of Tangents

  
• Law of Cosines

  
• Law of Sines

  
• difference to product cos(α) cos(β)

  
• difference to product sin(α) sin(β)

  
• sum to product cos(α) cos(β)

  
• sum to product sin(α) sin(β)

  
• product to sum cos(α) sin(β)

  
• product to sum cos(α) cos(β)

  
• product to sum sin(α) cos(β)

  
• product to sum sin(α) sin(β)

  
• half angle (tan)

  
• half angle (cos)

  
• half angle (sin)

  
• double angle (tan)

  
• double angle (cos)

  
• double angle (sin)

  
• periodic identity (tan, cot)


  ___(θ + πk) = ___θ
• periodic identity (cos, sin, sec, csc)


  ___(θ + 2πk) = ___θ
• tan(α ± β)

  
• cos(α ± β)

  
• sin(α ± β)

  
• Pythagorean Identities