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Sum to Product Trigonometry Identities Calculator

Trigonometry identities calculator to rewrite and evaluate sums of sines and/or cosines as products.

Sum to Product Trigonometry

  • Enter U Angle

  • Enter V Angle

  •    
  • Result:

    indication

Formula Used:

  sinu + sinv = 2 x sin(u+v/2) x cos(u-v/2)
  sinu - sinv = 2 x cos(u+v/2) x sin(u-v/2)
  cosu + cosv = 2 x cos(u+v/2) x cos(u-v/2)
  cosu - cosv = -2 x sin(u+v/2) x sin(u-v/2)

Sum to product trigonometry identities calculation is made easier here.

Product to sum trigonometry identities
calculation is made easier here.