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Va rog a jutațimă repede

Va Rog A Jutațimă Repede class=

Răspuns :

sper sa te ajute.........

Vezi imaginea ELIZACRETU

a)

[tex](\frac{3}{5} ^{7}) ^{5} = (\frac{3}{7})^{40} \\\\(\frac{3}{7})^{40} : (\frac{3}{7}^{17}) = (\frac{3}{7}) ^{40-17} = (\frac{3}{7}) ^{23}[/tex]

b)

[tex][(\frac{5}{9} )^{4}]^{6} : (\frac{5}{9} )^{11} \\\\(\frac{5}{9} )^{24} : (\frac{5}{9} )^{11} \\\\(\frac{5}{9} )^{24-11} = (\frac{5}{9} )^{13}[/tex]

c)

[tex](\frac{2}{5})^{51} : [(\frac{2}{5})^{7}]^{3} =\\\\ (\frac{2}{5})^{51} : (\frac{2}{5})^{21}=\\\\(\frac{2}{5})^{51-21} = (\frac{2}{5})^{30}[/tex]