Page 174 - aljaber
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. 151 > 150.5 = 1 ()
301 301 2
:( )
121 < 122 < 144 ⇔ 121 < 122 < 144 ()
⇔ 11 < 122 < 12
:( )
( )224 = 26 4 = (64)4
( )512 = 53 4 = (125)4
( )108 = 102 4 = (100)4
(64)4 < (100)4 < (125)4 64 < 100 < 125
. 224 < 108 < 512
.b < c +a b <c a>0 :( ) ( )
)
. ()
:( ) (
.p = 1 .0 < p <1 p
4
4>1 ( ) 1 > 1 ()
2 42
1 > 1 () b<0 1>4 ( ) )
64 16 4
.−b > 0 :( ) (
.a − b = a + (−b) > 0
.1 > 1 0<b <a :( ) ()
ba