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Fungrim entry: 954066

sin2 ⁣(z)cos2 ⁣(z)=cos ⁣(2z)\sin^{2}\!\left(z\right) - \cos^{2}\!\left(z\right) = -\cos\!\left(2 z\right)
Assumptions:zCz \in \mathbb{C}
TeX:
\sin^{2}\!\left(z\right) - \cos^{2}\!\left(z\right) = -\cos\!\left(2 z\right)

z \in \mathbb{C}
Definitions:
Fungrim symbol Notation Short description
Powab{a}^{b} Power
Sinsin ⁣(z)\sin\!\left(z\right) Sine
CCC\mathbb{C} Complex numbers
Source code for this entry:
Entry(ID("954066"),
    Formula(Equal(Sub(Pow(Sin(z), 2), Pow(Cos(z), 2)), Neg(Cos(Mul(2, z))))),
    Variables(z),
    Assumptions(Element(z, CC)))

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2019-08-21 11:44:15.926409 UTC