Solution 1.3:3c

From Förberedande kurs i matematik 1

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The number 9 can be written as <math>\,9 = 3\cdot 3 = 3^{2}</math> and therefore
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<math>9^{2} = (3^{2})^{2} = 3^{2\cdot 2} = 3^{4}\,</math>.
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Current revision

The number 9 can be written as \displaystyle \,9 = 3\cdot 3 = 3^{2} and therefore \displaystyle 9^{2} = (3^{2})^{2} = 3^{2\cdot 2} = 3^{4}\,.

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