Algebra Flashcards

1
Q

direkte Proportionalität

A

a1/b1 = a2/b2

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2
Q

indirekte Proportionalität

A

a1 x b1 = a2 x b2

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3
Q

Formel Prozentwert

A

Grundwert x Prozentsatz

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4
Q

Formel Grundwert

A

Prozentwert / Prozentsatz

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5
Q

Formel Prozentsatz

A

Prozentwert / Grundwert

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6
Q

(a/b)/(c/d)

A

a/b x d/c

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7
Q
  1. binomische Formel
A

(a+b)^2 = a^2 + 2ab + b^2

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8
Q
  1. binomische Formel
A

(a-b)^2 = a^2 - 2ab + b^2

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9
Q
  1. binomische Formel
A

(a+b)(a-b) = a^2 - b^2

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10
Q

Mitternachtsformel

A

x1/2 = (-b +- √b^2 - 4ac)/2a

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11
Q

Nullwinkel

A

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12
Q

spitzer Winkel

A

0° < Winkel < 90°

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13
Q

rechter Winkel

A

90°

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14
Q

stumpfer Winkel

A

90° < Winkel < 180°

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15
Q

gestreckter Winkel

A

180°

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16
Q

erhabener Winkel

A

180° < Winkel < 360

17
Q

voller Winkel

A

360°