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(3⁵²₋3⁵¹₋3⁵°)² ÷(9⁵⁰×25)          va rog ajutor

Răspuns :

[3⁵⁰(3²-3¹-1)]²/(9⁵⁰x5²) = (3⁵⁰x5)²/(3¹⁰⁰x5²) = (3¹⁰⁰x5²)/(3¹⁰⁰x5²)= 1