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Level 482

Addition & Subtraction Formulas


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Formulas for sine:
sin (s + t) = sin s cos t + cos s sin t
Formulas for sine:
sin (s - t) = sin s cos t - cos s sin t
Formulas for cosine:
cos (s + t) = cos s cos t - sin s sin t
Formulas for cosine:
cos (s - t) = cos s cos t + sin s sin t
Formulas for tangent:
tan (s + t) = tan s + tan t / 1 - tan s tan t
Formula tangent:
tan (s - t) = tan s - tan t / 1+ tan s tan t
sin(x+y)
sin x cos y + cos x sin y
sin(x-y)
sin x cos y - cos x sin y
cos(x+y)
cos x cos y + sin x sin y
cos(x-y)
cos x cos y - sin x sin 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