Question

Viết các tích sau dưới dạng lũy thừa:

a) \(\text{5.5.5.5;}\)                   b) \(\text{9.9.9.9.9.9.9;}\)

c) \(\text{7.7.7.7.7; }\)                  d) \(a.a.a.a.a.a.a.a.\)

 

Answer 1

\(a.\) \(5\cdot5\cdot5\cdot5=5^4\)

\(b.\) \(9\cdot9\cdot9\cdot9\cdot9\cdot9\cdot9=9^7\)

\(c.\) \(7\cdot7\cdot7\cdot7\cdot7=7^5\)

\(d.\) \(a\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a=a^8\)

Answer 2

 

 

 

 

 

Answer 3

5.5.5.5 ta đc 5⁴

9.9.9.9.9.9.9 ta đc 9⁷

7.7.7.7.7 ta đc 7⁵

a.a.a.a.a.a.a.a ta đc a⁸

Answer 4

a) 5^4

b) 9^7

c) 7^5

d) a^8

Answer 5

a) 5⁴

b) 9⁷

c)7⁵

d) a ⁸

Answer 6

 

$a.$ $5\cdot 5\cdot 5\cdot 5={}^{}$

$b.$ $9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9={}^{}$

$c.$ $7\cdot 7\cdot 7\cdot 7\cdot 7={}^{}$

$d.$ $a\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a={}^{}$

Answer 7

 

$a.$ $5\cdot 5\cdot 5\cdot 5={}^{}$

$b.$ $9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9\cdot 9={}^{}$

$c.$ $7\cdot 7\cdot 7\cdot 7\cdot 7={}^{}$

$d.$ $a\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a\cdot a={}^{}$

Answer 8

5.5.5.5=5⁴

9.9.9.9.9.9.9=9⁷

7.7.7.7.7=7⁵

a.a.a.a.a.a.a.a=a⁸

Answer 9

  

Answer 10

 

 

 

 

 

Answer 11