Explicație pas cu pas:
[tex]x = ( \sqrt{24} \div \sqrt{6} + \sqrt{2} \times \sqrt{8} - \sqrt{72} \div \sqrt{8} ) \times \sqrt{16} \\ x = ( \sqrt{4} + \sqrt{16} - \sqrt{9} ) \times \sqrt{16} \\ x = (2 + 4 - 3) \times 4 \\ x = 3 \times 4 \\ x = 12 \\ \\ y = ( - 2 \frac{1}{3} + (2.25) {}^{ - 1} ) \div ( - \frac{17}{27}) \\ y = ( - \frac{7}{3} + ( \frac{225}{100}) {}^{ - 1} ) \div ( - \frac{17}{27} ) \\ y = ( - \frac{7}{3} + (\frac{100}{225} ) {}^{1}) \div ( - \frac{17}{27} ) \\ y = ( - {}^{75)} \frac{7}{3} + \frac{100}{225}) \div ( - \frac{17}{27} ) \\ y = ( - \frac{525}{225} + \frac{100}{225}) \div ( - \frac{17}{27} ) \\ y = - \frac{425}{225} \div ( - \frac{17}{27}) \\ y = - \frac{425}{225} \times ( - \frac{27}{17} ) \\ y = \frac{75}{25} \\ y = 3 \\ \\ media \: geometrica \: (x.y) = \sqrt{x \times y} = \sqrt{12 \times 3} = \sqrt{36} = 6 \\ media \: aritmetica \: (x.y) = \frac{x + y}{2} = \frac{12 + 3}{2} = \frac{15}{2} = 7.5 \\ \\ |mg - 2ma| = |6 - 2 \times 7.5| = |6 - 15| = | - 9| = 9 [/tex]
Succes!
