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(2 pe5)la puterea12ori(2pe5)la puterea3impartit(2pe5)la puterea13​

Răspuns :

Răspuns:

(2/5)¹²·(2/5)³:(2/5)¹³=(2/5)¹²⁺³⁻¹³=(2/5)²=2²/5²=4/25