Răspuns:
3)
[tex] {17}^{91} > {17}^{19} [/tex]
[tex] {23}^{40} > {21}^{40} [/tex]
[tex] {25}^{35} = ( {5} {}^{5} ) {}^{35} = > {5}^{70 } < {5}^{135} [/tex]
[tex]9 {}^{36} = (3 {}^{2} ) {}^{36} = 3 {}^{72} ....27 {}^{25} = (3 {}^{3} ) {}^{25} = 3 {}^{75} = > 3 {}^{72} < 3 {}^{75} [/tex]
4)
[tex]n = ((121 - 11) \div 11) \div (4 + (3 \times 64 \div 12 + 32) \div 8) = (110 \div 11) \div (4 + 48 \div 8) = 10 \div (4 + 6) = 10 \div 10 = 1[/tex]
[tex]n = 1 = > n {}^{2020} = 1 {}^{2020} = 1[/tex]
