11. Sunt ordonate descrescător numerele: 21, 12, 31, 39, 17, 0 în ser
a. 39, 17, 31, 12, 21, 0;
b. 0, 12, 17, 21, 31, 39;
c. 39, 31, 21, 12, 17, 0;
d. 39, 31, 21, 17, 12, 0.
Arofu au fos

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