Question

Va rog ex 15 doar b c d

dau coroana!!!!!!

Answer 1

Răspuns

Explicație pas cu pas:

9^21/3^53=3^42/3^53=1/3^11

27^3/81^5=3^9/3^20=1/3^11  DECI RAPOARTELE SUNT EGALE

B.4^20/2^25=2^40/2^25=2^15

64^5/8^5=2^25/2^15=2^10 DECI RAPOARTEKLE NU SUNT EGALE

c.3^14/27^8=3^14/3^24=1/3^10

81^7/9/19=3^28/3^38=1/3^10 DECI RAPOARTELE SUNT EGALE

am folosit relatia (a^b)^c=a^(b*c)