(α+в+¢)²= α²+в²+¢²+2(αв+в¢+¢α)
- (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)
- ѕιη2α = 2тαηα / (1 + тαη²α)
- ¢σѕ2α = (1 − тαη²α) / (1 + тαη²α)
- 4ѕιη³α = 3ѕιηα − ѕιη3α
- 4¢σѕ³α = 3¢σѕα + ¢σѕ3α
🍄🍄🍄🍄🍄
» ѕιη²Θ+¢σѕ²Θ=1
» ѕє¢²Θ-тαη²Θ=1
» ¢σѕє¢²Θ-¢σт²Θ=1
» ѕιηΘ=1/¢σѕє¢Θ
» ¢σѕє¢Θ=1/ѕιηΘ
» ¢σѕΘ=1/ѕє¢Θ
» ѕє¢Θ=1/¢σѕΘ
» тαηΘ=1/¢σтΘ
» ¢σтΘ=1/тαηΘ
» тαηΘ=ѕιηΘ/¢σѕΘ
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