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Comparați:

7 la puterea 90 □ 6 la puterea 135


Răspuns :

7^90 = (7^2)^45 = 49^45

6^135 = (6^3)^45 = 216^45

49^45 < 216^45

7^90 < 6^135

7^90 = (7^2)^45 = 49^45

6^135 = (6^3)^45 = 216^45

49 < 216 => 49^45 < 216^45 =>

=> 7^90 < 6^135
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