Matematica 1 Flashcards

1
Q

Fórmulas trigonometria

Sen, cos, tg

A

Sen=co/hip

Cos=ca/hip

Tg=co/ca

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2
Q

Ângulo Reto, Agudo e Obtuso

A

Reto = 90
Agudo < 90
Obtuso > 90

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3
Q

Relação Fundamental da Trigonometria.

A

sen²x + cos²x = 1

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4
Q

Fórmula II: Tangente

A

tgx = senx
────
cosx

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5
Q

Fórmula III: Cotangente

A

cotgx = cosx
────
senx

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6
Q

Fórmula IV: Secante

A

secx = 1
───
cosx

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7
Q

Fórmula V: Cossecante

A

cosecx = 1
───
senx

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8
Q

Tangente e Secante no Arco Trigonometrico

A

tg²x + 1 = sec²x

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9
Q

Cotangente e Cosecante

A

cotg²x + 1 = cosec²x

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10
Q

Soma de Senos

A

sen (a + b) = sen a ∙ cosb + senb ∙ cosa

subtração só inverter o sinal

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11
Q

Soma de Cossenos

A

cos (a + b) = cosa ∙ cosb - sena ∙ senb

Subtração inverte o sinal

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