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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.

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Sum to Product Trigonometry Identities Calculation

 
Enter u angle in degree:
Enter v angle in degree:
 
 
Result:

  
   
  
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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.