Question

dau coroana m! VA ROG AJUTATI-MA!​

Answer 1

Răspuns:

Explicație pas cu pas:

19. 8*7 - 9*4 = 20 nu e p.p

23. log(2/1*3/2*4/3...*8/7 = Log(2,8) = 3

24. a = 7*4-7*8 < 0

b = log(2,(16^1/2)) = 1/2*4 = 2

b > a

25. a = 9, b = 4

26. 10*lg(1/2*2/3*...9/10) = 10*lg(1/10) = -10

27. log(2,45/5)*1/log(2,3) =

log(2,9)*1/log(2,3)=   se trece in baza 3

= log(3,9)/log(3,2) * log(3,2)/log(3,3) =

= log(3,9) = 2

Cam atat !