Svar 3.4:3

Förberedande kurs i matematik 1

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a) \displaystyle x=-\,\displaystyle\frac{1}{\ln{2}}\pm\sqrt{\left(\displaystyle\frac{1}{\ln{2}}\right)^2-1} b) \displaystyle x=\displaystyle \frac{5}{2}
c) \displaystyle x=1