Fórmulas Trigonométricas Flashcards

1
Q

Sen(A+B)

A

SenACosB + SenBCosA

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2
Q

Sen(A-B)

A

SenACosB - SenBCosA

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3
Q

Cos(A+B)

A

CosACosB - SenASenB

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4
Q

Cos(A-B)

A

CosACosB + SenASenB

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5
Q

Tan(A+B)

A

(TgA + TgB) / (1 - TgA*TgB)

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6
Q

Tan(A-B)

A

(TgA - TgB) / (1 + TgA*TgB)

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7
Q

Ctg(A+B)

A

(CtgA*CtgB - 1) / (CtgB + Ctg A)

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8
Q

Ctg(A-B)

A

(CtA*CtgB + 1) / (CtgB - CtgA)

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9
Q

Sen2x

A

2Senx*Cosx

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10
Q

Cos2x (tres respustas)

A

(Cosx)^2 - (Senx)^2
2(Cosx)^2 - 1
1 - 2(Senx)^2

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11
Q

Tan2x

A

(2Tgx) / [1 - (Tgx)^2]

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12
Q

Ctg2x

A

[(Ctgx)^2 - 1] / (2Ctgx)

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13
Q

Sen(x/2)

A

,/[(1 - Cosx) / 2]

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14
Q

Cos(x/2)

A

,/[1 + Cosx) / 2]

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15
Q

Tg(x/2) (tres respuestas)

A

,/[(1 - Cosx) / (1 + Cosx)]
(1 - Cosx) / Senx
Senx / (1 + Cosx)

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16
Q

Ctg(x/2) (tres respuestas)

A

,/[(1 + Cosx) / (1 - Cosx)]
Senx / (1 - Cosx)
(1 + Cosx) / Senx

17
Q

SenA + SenB

A

2{Sen[1/2(A+B)] * Cos[1/2(A-B)]}

18
Q

SenA - SenB

A

2{Cos[1/2(A+B)] * Sen[1/2(A-B)]}

19
Q

Cos A + CosB

A

2{Cos[1/2(A+B)] * Cos[1/2(A-B)]}

20
Q

CosA - CosB

A

2{Sen[1/2(A+B)] * Sen[1/2(A-B)]}