a (-5 - 10 - 15 - ... - 200):(-1-2-3 - ... - 40);
b (-8 - 16 - 24 - ... - 160):(-2-4-6-... – 40);
c (-12 - 24 - 36 - ... - 1212):(-6 - 12 - 18 - ... - 606);
d (-17 – 34 - 51 - ... - 850): (1.17 +2.17 +3.17 + ... + 50. 17).


iincazul in care nu se intelege faceti poza. VA ROG REPEDE!!!!​

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