Identidades Trigonométricas Flashcards

1
Q

Csc x

A

1/sen x

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2
Q

Sec x

A

1/cos x

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3
Q

Cot x

A

1/tan x

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4
Q

Tan x

A

Sen x/cos x

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5
Q

Cot x

A

Cos x/sen x

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6
Q

Identidades pitagoricas

A

Sen²x + cos²x = 1
Tan²x + 1 = sec²x
1 + cot²x = csc²x

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7
Q

Identidades pares e impares

A

Sen(-x) = - sen x
Cos(-x) = cos x
Tan(-x) = - tan x

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8
Q

Identidades de cofusiones

A

Sen(π/2 - x) = cos x
Cos(π/2 - x) = sen x

Tan(π/2 - x) = cot x
Cot(π/2 - x) = tan x

Sec(π/2 - x) = csc x
Csc(π/2 - x) = sec x

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9
Q

Fórmulas seno

A

Sen(s + t) = sen s cos t + cos s sen t
Sen(s - t) = sen s cos t - cos s sen t

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10
Q

Fórmulas coseno

A

Cos(s + t) = cos s cos t - sen s sen t
Cos(s - t) = cos s cos t + sen s sen t

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11
Q

Fórmulas tangente

A

Tan(s + t) = tan s + tan t / 1-tan s tan t
Tan(s - t) = tan s - tan t / 1+tan s tan t

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12
Q

Fórmulas ángulo doble

A

Sen 2x=2sen x Cos x
Cos 2x = 2cos²x - 1
Tan 2x=2tan x / 1-tan²x

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13
Q

Fórmulas para bajar potencias

A

Sen²x = 1-cos 2x/2
Cos²x=1+cos 2x/2
Tan²x=1-cos 2x/ 1 +cos 2x

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14
Q

Fórmulas producto semisuuma

A

Sen u cos v = sen(u+v)+sen(u-v) / 2
Cos u sen v = sen(u+v)+sen(u-v) / 2
Cos u cos v = cos(u+v)+cos(u-v) / 2
Sen u sen v = cos(u-v)+cos(u+v) / 2

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15
Q

Formula de suma a producto

A

Sen x + sen y =2sen(x+y/2)cos(x-y/2)
Sen x - sen y =2cos(x+y/2)sen(x-y/2)
Cos x + cos y =2cos(x+y/2)cos(x-y/2)
Cos x - cos y =2sen(x+y/2)sen(x-y/2)

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