Valeurs trigonométriques Flashcards

1
Q

Al Kashi

A

a² = b² + c² - 2bc⋅cos(Â)

a = côté opposé à l’angle Â, c-à-d- BC

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2
Q

Loi des sinus

A

a/sin(Â) = b/sin(B̂) = c/sin(Ĉ)

ou

sin(Â)/a = sin(B̂)/b = sin(Ĉ)/c

a = côté opposé à l’angle Â, c-à-d- BC

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3
Q

Conversion de x° en rad

A

x°⋅π/180

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4
Q

Conversion de x rad en °

A

(x rad)⋅180/π

Ou juste remplacer π par 180

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5
Q

sin(0)

A

0

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6
Q

cos(0)

A

1

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7
Q

tan(0)

A

0

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8
Q

sin(π/6)

A

1

2

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9
Q

cos(π/6)

A

√3

2

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10
Q

tan(π/6)

A

√3

3

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11
Q

sin(π/4)

A

√2

2

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12
Q

sin(π/3)

A

√3

2

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13
Q

sin(π/2)

A

1

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14
Q

cos(π/4)

A

√2

2

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15
Q

cos(π/3)

A

1

2

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16
Q

cos(π/2)

A

0

17
Q

tan(π/4)

A

1

18
Q

tan(π/3)

A

√3

19
Q

tan(π/2)

A

Impossible