GONIOMETRIE: HOOFDFORMULES Flashcards

1
Q

Sinus ² α + Cos ² α = ?

A

1

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2
Q

Cos ² α = ?

A

1 - sin ² α

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3
Q

Sin ² α

A

1 - cos ² α

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4
Q

Tan α = ?

A

sin α : cos α

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5
Q

Cotan α = ?

A

Cos α : Sin α

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6
Q

Cos 45 ° = Sin 45 °

A

√ 2 /2

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7
Q

Tan 45 ° = ?

A

Sin 45 °/ Cos 45 ° = 1

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8
Q

Cotan 45 ° = ?

A

Cos 45 °/ Sin 45 ° = 1

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9
Q

Cos 45 ° ² + Sin 45 ° ² = ?

A

1

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10
Q

Conclusie over 45 °

A

Het is een vierkant sinus en cosinus zijn gelijk

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11
Q

Cos 60 ° = ?

A

1/2

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12
Q

Sin 60 ° = ?

A

√ 3 /2

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13
Q

Tan 60 ° = ?

A

√ 3

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14
Q

Cotan 60 ° = ?

A

√ 3 / 3

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15
Q

Conclusie 60 ° en 30 °

A

60 ° en 30 ° zijn het omgekeerde van elkaar cosinus is sinus en sinus is cosinus

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16
Q

Cos 30 ° = ?

A

√ 3 / 2

17
Q

Sin 30 °

A

1/2

18
Q

Tan 30 °

A

√3 / 3

19
Q

Cotan 30 °

A

√3

20
Q

Sin α 90 ° = ?

A

1

21
Q

Cos α 90 ° = ?

A

0

22
Q

Cotan α 90 ° = ?

A

0

23
Q

Complementair

A

90 °

24
Q

Supplementair

A

180 °

25
Q

Hoofdwaarde van een hoek

A

X - k (360 °) of X + k (360 °)

X < 360 °