Identidad suma o diferencia de ángulos

La identidad sen(x+y)=

• sin(x+y) = sin(x) + sin(y)
• sin(x+y) = cos(x)cos(y) - sin(x)sin(y)
• sin(x+y) = sin(x)cos(y) + cos(x)sin(y)
• sin(x+y) = sin(x) - cos(y)

La identidad sen(x-y)=

• sin(x - y) = sin(x) + sin(y)
• sin(x - y) = sin(x)cos(y) - cos(x)sin(y)
• sin(x - y) = cos(x)cos(y) + sin(x)sin(y)
• sin(x - y) = cos(x - y)

La identidad Cos(x+y)=

• cos(x+y) = cos(x) - sin(y)
• cos(x+y) = cos(x) + cos(y)
• cos(x+y) = sin(x)sin(y) + cos(x)cos(y)
• cos(x+y) = cos(x)cos(y) - sin(x)sin(y)

La identidad Cos(x-y)=

• Sin(x)Sin(y) - Cos(x)Cos(y)
• Cos(x) - Sin(y)
• Cos(x)Cos(y) + Sin(x)Sin(y)
• Cos(x+y)

La identidad Tan(x+y)=

• Tan(x+y) = (Tan(x) - Tan(y)) / (1 + Tan(x) * Tan(y))
• Tan(x+y) = Tan(x) - Tan(y)
• Tan(x+y) = Tan(x) * Tan(y)
• Tan(x+y) = (Tan(x) + Tan(y)) / (1 - Tan(x) * Tan(y))

La identidad Tan(x-y)=

• tan(x-y) = (tan x + tan y) / (1 - tan x * tan y)
• tan(x-y) = (tan x - tan y) / (1 + tan x * tan y)
• tan(x-y) = (tan x * tan y) / (1 - tan x + tan y)
• tan(x-y) = (tan x + tan y) / (1 + tan x * tan y)