Question

Ex 9 c si b sau 10 sau 11cine imi da rezolvarea la macar un ex are coroana

Answer 1

Răspuns:

9)b.5^35=5*5^34

3*2^68=3*(2^2)^34=3*4^34

(1)5>3

(2)5^34>4^34 exponenti egali,baze diferite din(1),(2)⇒5*5^34>3*2^68

c.2^79=2^2*2^77=4*(2^7)^11=4*128^11

3*5^34=3*5*5^33=15*(5^3)^11=15*125^11

15*125^11<4*128^11⇒3*5^34<2^79

11)a.3^73=3^(71+2)=3^71*3^2=3^71*9

2^74=2^(71+3)=2^71*2^3=2^71*8

2^74<3^73

Explicație pas cu pas: