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2. Efectuați, folosind regulile de calcul cu puteri:
a) 342: (312. 327); b) (73. 75)5 : 738,
c) (2.219)4: 826​

2 Efectuați Folosind Regulile De Calcul Cu Puteria 342 312 327 B 73 755 738c 22194 826 class=

Răspuns :

Mady657ask

Salut!

a)

[tex]3^{42} : (3^{12} * 3^{27} \\\\=3^{42} : 3^{39} \\\\=3^{3}\\\\=27\\[/tex]

b)

[tex](7^{3} * 7^{5})^{5} : 7^{38} \\\\=(7^{8}) ^{5} : 7^{38} \\\\=7^{40} : 7^{38} \\\\=7^{2} \\\\=49[/tex]

c)

[tex](2*2^{19})^{4} : 8^{26}\\ \\=(2^{1} * 2^{19})^{4} : 8^{26} \\\\=(2^{20})^{4} : 8^{26} \\\\=2^{80} : 8^{26} \\\\=2^{80} : (2^{3})^{26} \\\\=2^{80} : 2^{78} \\\\=2^{2} \\\\=4[/tex]

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