H3: goniometrische formules Flashcards

1
Q

cos(α-β)

A

cosα * cosβ + sinα * sinβ

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2
Q

cos(α+β)

A

cosα * cosβ - sinα * sinβ

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3
Q

sin(α-β)

A

sinα * cosβ - sinα * cosβ

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4
Q

sin(α+β)

A

sinα * cosβ + sinα * cosβ

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5
Q

tan(α-β)

A

(tanα - tanβ)/(1+tanα * tanβ)

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6
Q

tan(α+β)

A

(tanα + tanβ)/(1-tanα * tanβ)

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7
Q

sin2α

A
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8
Q

cos2α (3)

A
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9
Q

tan2α

A
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10
Q

cos²α

A
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11
Q

sin²α

A
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12
Q

tan²α

A
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13
Q

regel van de t-formules

A

t = tan α/2

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14
Q

t-formule sin α

A
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15
Q

t-formule cos α

A
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16
Q

t-formule tan α

A
17
Q

sin p + sin q

A
18
Q

sin p - sin q

A
19
Q

cos p + cos q

A
20
Q

cos p - cos q

A