Elementarmathematik Beispiele

$\frac{{(\sin (x) + \tan (x))}^{2} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1

Vereinfache den Zähler.

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Schritt 1.1

Schreibe $\tan (x)$ mithilfe von Sinus und Kosinus um.

$\frac{{(\sin (x) + \frac{\sin (x)}{\cos (x)})}^{2} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.2

Schreibe ${(\sin (x) + \frac{\sin (x)}{\cos (x)})}^{2}$ als $(\sin (x) + \frac{\sin (x)}{\cos (x)}) (\sin (x) + \frac{\sin (x)}{\cos (x)})$ um.

$\frac{(\sin (x) + \frac{\sin (x)}{\cos (x)}) (\sin (x) + \frac{\sin (x)}{\cos (x)}) + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.3

Multipliziere $(\sin (x) + \frac{\sin (x)}{\cos (x)}) (\sin (x) + \frac{\sin (x)}{\cos (x)})$ aus unter Verwendung der FOIL-Methode.

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Schritt 1.3.1

Wende das Distributivgesetz an.

$\frac{\sin (x) (\sin (x) + \frac{\sin (x)}{\cos (x)}) + \frac{\sin (x)}{\cos (x)} (\sin (x) + \frac{\sin (x)}{\cos (x)}) + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.3.2

Wende das Distributivgesetz an.

$\frac{\sin (x) \sin (x) + \sin (x) \frac{\sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} (\sin (x) + \frac{\sin (x)}{\cos (x)}) + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.3.3

Wende das Distributivgesetz an.

$\frac{\sin (x) \sin (x) + \sin (x) \frac{\sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4

Vereinfache und fasse gleichartige Terme zusammen.

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Schritt 1.4.1

Vereinfache jeden Term.

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Schritt 1.4.1.1

Multipliziere $\sin (x) \sin (x)$ .

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Schritt 1.4.1.1.1

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{1} (x) \sin (x) + \sin (x) \frac{\sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.1.2

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{1} (x) \sin^{1} (x) + \sin (x) \frac{\sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.1.3

Wende die Exponentenregel $a^{m} a^{n} = a^{m + n}$ an, um die Exponenten zu kombinieren.

$\frac{{\sin (x)}^{1 + 1} + \sin (x) \frac{\sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.1.4

Addiere $1$ und $1$ .

$\frac{\sin^{2} (x) + \sin (x) \frac{\sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.2

Multipliziere $\sin (x) \frac{\sin (x)}{\cos (x)}$ .

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Schritt 1.4.1.2.1

Kombiniere $\sin (x)$ und $\frac{\sin (x)}{\cos (x)}$ .

$\frac{\sin^{2} (x) + \frac{\sin (x) \sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.2.2

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{1} (x) \sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.2.3

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{1} (x) \sin^{1} (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.2.4

Wende die Exponentenregel $a^{m} a^{n} = a^{m + n}$ an, um die Exponenten zu kombinieren.

$\frac{\sin^{2} (x) + \frac{{\sin (x)}^{1 + 1}}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.2.5

Addiere $1$ und $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \sin (x) + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.3

Multipliziere $\frac{\sin (x)}{\cos (x)} \sin (x)$ .

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Schritt 1.4.1.3.1

Kombiniere $\frac{\sin (x)}{\cos (x)}$ und $\sin (x)$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin (x) \sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.3.2

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{1} (x) \sin (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.3.3

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{1} (x) \sin^{1} (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.3.4

Wende die Exponentenregel $a^{m} a^{n} = a^{m + n}$ an, um die Exponenten zu kombinieren.

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{{\sin (x)}^{1 + 1}}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.3.5

Addiere $1$ und $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4

Multipliziere $\frac{\sin (x)}{\cos (x)} \cdot \frac{\sin (x)}{\cos (x)}$ .

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Schritt 1.4.1.4.1

Mutltipliziere $\frac{\sin (x)}{\cos (x)}$ mit $\frac{\sin (x)}{\cos (x)}$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin (x) \sin (x)}{\cos (x) \cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.2

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{1} (x) \sin (x)}{\cos (x) \cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.3

Potenziere $\sin (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{1} (x) \sin^{1} (x)}{\cos (x) \cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.4

Wende die Exponentenregel $a^{m} a^{n} = a^{m + n}$ an, um die Exponenten zu kombinieren.

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{{\sin (x)}^{1 + 1}}{\cos (x) \cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.5

Addiere $1$ und $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x) \cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.6

Potenziere $\cos (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{1} (x) \cos (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.7

Potenziere $\cos (x)$ mit $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{1} (x) \cos^{1} (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.8

Wende die Exponentenregel $a^{m} a^{n} = a^{m + n}$ an, um die Exponenten zu kombinieren.

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{{\cos (x)}^{1 + 1}} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.1.4.9

Addiere $1$ und $1$ .

$\frac{\sin^{2} (x) + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.4.2

Addiere $\frac{\sin^{2} (x)}{\cos (x)}$ und $\frac{\sin^{2} (x)}{\cos (x)}$ .

$\frac{\sin^{2} (x) + 2 \frac{\sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.5

Kombiniere $2$ und $\frac{\sin^{2} (x)}{\cos (x)}$ .

$\frac{\sin^{2} (x) + \frac{2 \sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - \sec^{2} (x)}{\tan (x)}$

Schritt 1.6

Schreibe $\sec (x)$ mithilfe von Sinus und Kosinus um.

$\frac{\sin^{2} (x) + \frac{2 \sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - {(\frac{1}{\cos (x)})}^{2}}{\tan (x)}$

Schritt 1.7

Wende die Produktregel auf $\frac{1}{\cos (x)}$ an.

$\frac{\sin^{2} (x) + \frac{2 \sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - \frac{1^{2}}{\cos^{2} (x)}}{\tan (x)}$

Schritt 1.8

Eins zu einer beliebigen Potenz erhoben ergibt eins.

$\frac{\sin^{2} (x) + \frac{2 \sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - \frac{1}{\cos^{2} (x)}}{\tan (x)}$

Schritt 1.9

Schreibe $\sin^{2} (x) + \frac{2 \sin^{2} (x)}{\cos (x)} + \frac{\sin^{2} (x)}{\cos^{2} (x)} + \cos^{2} (x) - \frac{1}{\cos^{2} (x)}$ in eine faktorisierte Form um.

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Schritt 1.9.1

Es sei $u = \frac{2 \sin^{2} (x)}{\cos (x)}$ . Ersetze $u$ für alle $\frac{2 \sin^{2} (x)}{\cos (x)}$ .

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Schritt 1.9.1.1

Subtrahiere $1$ von $1$ .

$\frac{u + 0}{\tan (x)}$

Schritt 1.9.1.2

Addiere $u$ und $0$ .

$\frac{u}{\tan (x)}$

Schritt 1.9.2

Ersetze alle $u$ durch $\frac{2 \sin^{2} (x)}{\cos (x)}$ .

$\frac{\frac{2 \sin^{2} (x)}{\cos (x)}}{\tan (x)}$

Schritt 2

Schreibe $\tan (x)$ mithilfe von Sinus und Kosinus um.

$\frac{\frac{2 \sin^{2} (x)}{\cos (x)}}{\frac{\sin (x)}{\cos (x)}}$

Schritt 3

Multipliziere den Zähler mit dem Kehrwert des Nenners.

$\frac{2 \sin^{2} (x)}{\cos (x)} \cdot \frac{\cos (x)}{\sin (x)}$

Schritt 4

Kombinieren.

$\frac{2 \sin^{2} (x) \cos (x)}{\cos (x) \sin (x)}$

Schritt 5

Kürze den gemeinsamen Teiler von $\sin^{2} (x)$ und $\sin (x)$ .

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Schritt 5.1

Faktorisiere $\sin (x)$ aus $2 \sin^{2} (x) \cos (x)$ heraus.

$\frac{\sin (x) (2 \sin (x) \cos (x))}{\cos (x) \sin (x)}$

Schritt 5.2

Kürze die gemeinsamen Faktoren.

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Schritt 5.2.1

Faktorisiere $\sin (x)$ aus $\cos (x) \sin (x)$ heraus.

$\frac{\sin (x) (2 \sin (x) \cos (x))}{\sin (x) \cos (x)}$

Schritt 5.2.2

Kürze den gemeinsamen Faktor.

$\frac{\sin (x) (2 \sin (x) \cos (x))}{\sin (x) \cos (x)}$

Schritt 5.2.3

Forme den Ausdruck um.

$\frac{2 \sin (x) \cos (x)}{\cos (x)}$

Schritt 6

Kürze den gemeinsamen Faktor von $\cos (x)$ .

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Schritt 6.1

Kürze den gemeinsamen Faktor.

$\frac{2 \sin (x) \cos (x)}{\cos (x)}$

Schritt 6.2

Dividiere $2 \sin (x)$ durch $1$ .

$2 \sin (x)$