Formulas

List of Formulas

·        (α+в)²= α²+2αв+в²
·        (α+в)²= (α-в)²+4αв
·        (α-в)²= α²-2αв+в²
·        (α-в)²= (α+в)²-4αв
·        α² + в²= (α+в)² - 2αв.
·        α² + в²= (α-в)² + 2αв.
·        α²-в² =(α + в)(α - в)
·        2(α² + в²) = (α+ в)² + (α - в)²
·        4αв = (α + в)² -(α-в)²
·        αв ={(α+в)/2}²-{(α-в)/2}²
·        (α + в + ¢)² = α² + в² + ¢² + 2(αв + в¢ + ¢α)
·        (α + в)³ = α³ + 3α²в + 3αв² + в³
·        (α + в)³ = α³ + в³ + 3αв(α + в)
·        (α-в)³=α³-3α²в+3αв²-в³
·        α³ + в³ = (α + в) (α² -αв + в²)
·        α³ + в³ = (α+ в)³ -3αв(α+ в)
·        α³ -в³ = (α -в) (α² + αв + в²)
·        α³ -в³ = (α-в)³ + 3αв(α-в)
·        ѕιη0° =0
·        ѕιη30° = 1/2
·        ѕιη45° = 1/√2
·        ѕιη60° = √3/2
·        ѕιη90° = 1
·        ¢σѕ ιѕ σρρσѕιтє σƒ ѕιη
·        тαη0° = 0
·        тαη30° = 1/√3
·        тαη45° = 1
·        тαη60° = √3
·        тαη90° = ∞
·        ¢σт ιѕ σρρσѕιтє σƒ тαη
·        ѕє¢0° = 1
·        ѕє¢30° = 2/√3
·        ѕє¢45° = √2
·        ѕє¢60° = 2
·        ѕє¢90° = ∞
·        ¢σѕє¢ ιѕ σρρσѕιтє σƒ ѕє¢
·        2ѕιηα¢σѕв=ѕιη(α+в)+ѕιη(α-в)
·        2¢σѕαѕιηв=ѕιη(α+в)-ѕιη(α-в)
·        2¢σѕα¢σѕв=¢σѕ(α+в)+¢σѕ(α-в)
·        2ѕιηαѕιηв=¢σѕ(α-в)-¢σѕ(α+в)
·        ѕιη(α+в)=ѕιηα ¢σѕв+ ¢σѕα ѕιηв.
·        ¢σѕ(α+в)=¢σѕα ¢σѕв - ѕιηα ѕιηв.
·        ѕιη(α-в)=ѕιηα¢σѕв-¢σѕαѕιηв.
·        ¢σѕ(α-в)=¢σѕα¢σѕв+ѕιηαѕιηв.
·        тαη(α+в)= (тαηα + тαηв)/ (1−тαηαтαηв)
·        тαη(α−в)= (тαηα − тαηв) / (1+ тαηαтαηв)
·        ¢σт(α+в)= (¢σтα¢σтв −1) / (¢σтα + ¢σтв)
·        ¢σт(α−в)= (¢σтα¢σтв + 1) / (¢σтв− ¢σтα)
·        ѕιη(α+в)=ѕιηα ¢σѕв+ ¢σѕα ѕιηв.
·        ¢σѕ(α+в)=¢σѕα ¢σѕв +ѕιηα ѕιηв.
·        ѕιη(α-в)=ѕιηα¢σѕв-¢σѕαѕιηв.
·        ¢σѕ(α-в)=¢σѕα¢σѕв+ѕιηαѕιηв.
·        тαη(α+в)= (тαηα + тαηв)/ (1−тαηαтαηв)
·        тαη(α−в)= (тαηα − тαηв) / (1+ тαηαтαηв)
·        ¢σт(α+в)= (¢σтα¢σтв −1) / (¢σтα + ¢σтв)
·        ¢σт(α−в)= (¢σтα¢σтв + 1) / (¢σтв− ¢σтα)
·        α/ѕιηα = в/ѕιηв = ¢/ѕιη¢ = 2я
·        α = в ¢σѕ¢ + ¢ ¢σѕв
·        в = α ¢σѕ¢ + ¢ ¢σѕα
·        ¢ = α ¢σѕв + в ¢σѕα
·        ¢σѕα = (в² + ¢²− α²) / 2в¢
·        ¢σѕв = (¢² + α²− в²) / 2¢α
·        ¢σѕ¢ = (α² + в²− ¢²) / 2¢α
·        Δ = αв¢/4я
·        ѕιηΘ = 0 тнєη,Θ = ηΠ
·        ѕιηΘ = 1 тнєη,Θ = (4η + 1)Π/2
·        ѕιηΘ =−1 тнєη,Θ = (4η− 1)Π/2
·        ѕιηΘ = ѕιηα тнєη,Θ = ηΠ (−1)^ηα
·        ѕιη2α = 2ѕιηα¢σѕα
·        ¢σѕ2α = ¢σѕ²α − ѕιη²α
·        ¢σѕ2α = 2¢σѕ²α − 1
·        ¢σѕ2α = 1 − ѕιη²α
·        2ѕιη²α = 1 − ¢σѕ2α
·        1 + ѕιη2α = (ѕιηα + ¢σѕα)²
·        1 − ѕιη2α = (ѕιηα − ¢σѕα)²
·        тαη2α = 2тαηα / (1 − тαη²α)