Предмет: Алгебра, автор: максимумный

пж решите по алгебре #582 абвг !!!!!

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Автор ответа: magicmasha
0
а) 3^10*5^8 и 15^9; можно записать так
3*(3^9*5^8) и (3^9*5^8)*5; 3<5 значит
3^10*5^8 < 15^9;
б) 6^18 и 2^20*3^16; можно записать так
(2^18*3^16)*3^2 и 2^2*(2^18*3^16); 9>4 значит
6^18 > 2^20*3^16;
в) 81^10 и 2^20*5^20; можно записать так
(9^2)^10 и (2*5)^20; 9^20 < 10^20 значит
81^10 < 2^20*5^20;
г) 49^15 и 2^30*3^30; можно записать так
(7^2)^15 и (2*3)^30; 7^30 > 6^30 значит
49^15 > 2^30*3^30.
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