(1.) x -½ = ⅛ ,berapakah nilai x tersebut
(2.) ⅓ log 9 =.....
(3.) x log 1/9 = -2 ,berapakah nilai x tersebut
(4.) ½ log 0,125 =.....![]()
(2.) ⅓ log 9 =.....
(3.) x log 1/9 = -2 ,berapakah nilai x tersebut
(4.) ½ log 0,125 =.....
Materi : Logaritma
1) x-¹/² = ⅛
8/√x = 1
√x = 8
x = 8²
[ x = 64 ]
2) ¹/³log(⅑)
(⅓)ⁿ = ⅑
(⅓)ⁿ = (⅓)²
[ n = 2 ]
3) ×log(⅑) = -2
×log(9-¹) = -2
×log(3-²) = -2
(-2)×log(3) = -2
×log(3) = (-2)/(-2)
×log(3) = 1
x = 3¹
[ x = 3 ]
4) ¹/²log(0,125)
= (2-¹)log(⅛)
= (2-¹)log(8-¹)
= (2-¹)log(2-³)
(2-¹)ⁿ = 2-³
2-ⁿ = 2-³
- n = -3
[ n = 3 ]
Semoga bisa membantu
[tex] \boxed{ \colorbox{navy}{ \sf{ \color{lightblue}{ Answer\:by\: BLUEBRAXGEOMETRY}}}} [/tex]
Penyelesaian:
x-½=⅛
x=⅛+½
x=5/8
-----------------
⅓log9
=3^-1 log3²
=2/-1.³log3
=-2
-----------------
x log 1/9=-2
x log 3^-2=-2
-2.xlog3=-2
xlog3=1
x=3
-----------------
½log0,125
=½log⅛
=2^-1log2^-3
=-3/-1 .²log2
=3
[tex]\boxed{ \colorbox{black}{ \sf{ \color{lightgreen}{ answered\:by\:Duone}}}}[/tex]
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