Question

b) a = 3 la puterea 81, b = 9 la puterea 40 Comparati numerele!

Answer 1

$b = {9}^{40} = {3}^{2 \times 40} = {3}^{80}$

${3}^{81} > {3}^{81}$

$a > b$

Answer 2

Răspuns:

3⁸¹

9⁴⁰=(3²)⁴⁰=3²ˣ⁴⁰=3⁸⁰

avem aceeasi baza comparam exponentii

81 > 80

3⁸¹ > 9⁴⁰