Question

VA ROG,DAU COROANĂ!!​

Answer 1

Răspuns:

Explicație pas cu pas:

a)

3 + 6 + 9 +... + 36 = 3*(1 + 2 + 3 + 12) = 3*12*13/2 = 234

x = 5^234

y = (5^47)^5 = 5^235

x < y ⇒ x > y fals

b)

x = 2^10000 = (2^10)^1000 = 1024^1000

y = 10^3000 = (10^3)^1000 = 1000^1000

x > y  adevarat

c)

x = n^2006 = n^2*n^2004

y = n^2004 + n^2005 = n^2004*(1 + n)

n^2 > n + 1

x > y adevarat