Question

calculați:

va rog ajutati-mă​

Answer 1

Răspuns:

Explicație pas cu pas:

a) (2³)⁸ : 4¹¹ = (2³ˣ⁸) : (2²)¹¹ = (2²⁴) : (2²ˣ¹¹) = 2²⁴⁻²² = 2² = 4

b) (3⁷)⁴ : 9¹³ = (3⁷ˣ⁴):(3²)¹³ = 3²⁸:(3²ˣ¹³) = 3²⁸:3²⁶ = 3²⁸⁻²⁶ = 3² = 9

c) (2⁹)² :4⁹ = (2⁹ˣ²):(2²)⁹ = 2¹⁸:2¹⁸ = 1

d) 8²⁴:16¹⁸ = (2³)²⁴ : (2⁴)¹⁸ = (2³ˣ²⁴):(2⁴ˣ¹⁸) = 2⁷² : 2⁷² = 1

e) 125¹² :25¹⁷ = (5³)¹² : (5²)¹⁷ = (5³ˣ¹²):(5²ˣ¹⁷) = 5³⁶:5³⁴ = 5³⁶⁻³⁴ = 5² = 25

f) 81³⁶:27⁴⁸ = (3⁴)³⁶ :(3³)⁴⁸ = (3⁴ˣ³⁶):(3³ˣ⁴⁸) = 3¹⁴⁴:3¹⁴⁴ = 1

g) 7^13² : 49⁸⁴ = 7¹⁶⁹ : (7²)⁸⁴ = 7¹⁶⁹:7¹⁶⁸ = 7¹⁶⁹⁻¹⁶⁸ = 7

h) 3^7² : 81¹² = (3⁴⁹):(3⁴)¹² = 3⁴⁹ : 3⁴⁸ = 3⁴⁹⁻⁴⁸ = 3