Question

$(5 {}^{21} \div 5 {}^{10} - 5 {}^{10} ) \div 5 {}^{2}$


am nevoie de ajutor

MULTUMESC​

Answer 1

Răspuns:

$(5 {}^{21} \div 5 {}^{10} - 5 {}^{10} ) \div 5 {}^{2} = \\ 5 {}^{1} \div 5 {}^{2} = 5 {}^{ - 1} = \frac{1}{5}$

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