Math
Sum and Difference Identities Calculator
sin(α±β) and cos(α±β) from two angles in degrees.
Free to use — no sign-up or login.
sin(α+β)
sin(α−β)
cos(α+β)
cos(α−β)
Amortization schedule
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This free Sum and Difference Identities Calculator covers sin(α±β) and cos(α±β) from two angles in degrees.
Angle-sum identities expand sine and cosine of a sum or difference. Related math tools sit beside How it works, with no account required.
Using the Sum and Difference Identities Calculator
sin(α±β) and cos(α±β) from two angles in degrees. Typical inputs are α (°) and β (°). How it works beside the form states the identity the Sum and Difference Identities Calculator applies.
FAQ
How do I use the Sum and Difference Identities Calculator?
Open the Sum and Difference Identities Calculator, fill α (°) and β (°), and read the result. Angle-sum identities expand sine and cosine of a sum or difference.
What formula does the Sum and Difference Identities Calculator use?
The Sum and Difference Identities Calculator uses the identity in How it works. In words: Angle-sum identities expand sine and cosine of a sum or difference.