Tuesday, August 25, 2020

Harmonic Identities

Asin(x) + Bcos(x) ≡ Rsin(x + α)

Asin(x) – Bcos(x) ≡ Rsin(x – α)

Acos(x) + Bsin(x) ≡ Rcos(x – α)

Acos(x) – Bsin(x) ≡ Rcos(x + α)

R=√(A^2+B^2) ; α=arctan(B/A)
Posted by Little_nemO

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