Question

compara puterile a16²⁸si14²⁸ b25¹²³si25²²³ c16¹⁴ si 8²¹ d,25²⁵si5⁴⁸​

Answer 1

Răspuns:

a) 16^28 >14^28

b)25^123<25^223

c)16^14=(2^4)^14=2^56

8^21=(2^3)^21 =2^66

rezulta ca 16^14<8^21

d) 25^25= 5^50 (analog c)

de unde rezulta ca 25^25<5^48