Question

Ex 1 va roooog va dau coroana

Answer 1

1) [tex]1) 3^{18} : 3^{12} * 3 : ( 3^{2} )^3 = 3^6 * 3 : 3^6 = 3^7:3^6 = 3^1= 3 [/tex]$1) \frac{2}{5} + \frac{3}{20} - \frac{1}{12} =$$= \frac{2}{5} + \frac{3}{20} = \frac{8+3}{20} = \frac{11}{20}$$\frac{11}{20} - \frac{1}{12} = \frac{7}{15}$
3) (3-0,72) * 10 : 0.8 = 2,28*10 : 0.8 = 22,8 : 0,8= 28,5