Page 61 - aljaber

@ @¶ìÿa@óÝy‹¾a@ u@ @TX

:

1 4 1 4 4 16 64 1024 ( )
4

.1

4

:( )

991 + 993 + 995 + 997 + 999
= (1000 − 9) + (1000 − 7) + (1000 − 5) + (1000 − 3) + (1000 − 1)
= 5000 − (9 + 7 + 5 + 3 + 1)
= 5000 − 25

5000 − 25 = 5000 − N :( ) ()
N = 25
.a,b < 0
.b a

a,b > 0

b = −2 a = −24

. a = −24 = 12

b −2

:( ) ()

n

x x   n  k
k

 46  = 15 3 .
3