PRACTICA DE LOGARITMOS
I ) Calcular :
1 ) log 2 8 =
2 ) log 3 9 =
3 ) log 4
2 =
4 ) log 27
3 =
5 ) log 5
0,2 =
6 ) log 2
0,25 =
7 ) log 0,5
16 =
8 ) log 0,1
100 =
9 ) log 3
27 + log 3
1 =
10 ) log 5
25 log 5
5 =
11 ) log 4
64 + log 8
64 =
12 ) log 0,1 log 0,01 =
13 ) log 5 + log 20 =
14 ) log 2 log 0,2 =
15 ) log 32 / log 2 =
16 ) log 3 / log 81 =
17 ) log 2 3 log 3 4 =
18 ) log 9 25 log 3 5 =
II ) Determinar el valor de x :
1 ) log 3
81 = x
2 ) log 5 0,2 = x
3 ) log 4
64 = ( 2 x 1 ) / 3
4 ) log 2 16 = x 3
/ 2
5 ) log 2 x = 3
6 ) log 7
x = 3
7 ) log6
[ 4 ( x 1 ) ] = 2
8 ) log 8 [ 2 ( x 3
+ 5 ) ] = 2
9 ) log x 125 = 3
10 ) log x
25 = 2
11 ) log 2 x + 3
81 = 2
12 ) x + 2 = 10 log 5
13 ) x = 10 4 log 2
14 ) x = log 8 / log 2
15 ) x = log 625 / log 125
16 ) log ( x + 1 ) / log ( x 1 ) = 2
17 ) log ( x 7 ) / log ( x 1 ) = 0,5
III ) Si log 2 = 0,301 , log 3 = 0,477 , log 7 = 0,845
log 5 = 0,698 entonces :
1 ) log 8 =
2 ) log 9 =
3 ) log 5 =
4 ) log 54 =
5 ) log 75 =
6 ) log 0,25 =
7 ) log ( 1 / 6 ) =
8 ) log ( 1 / 98 ) =
9 ) log ( 1 / 36 ) =
10 ) log ( 2 / 3 ) =
11 ) log 0,3 =
EJERCICIOS ECUACIONES EXPONENCIALES
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Practica logaritmos

  • 1.
    PRACTICA DE LOGARITMOS I) Calcular : 1 ) log 2 8 = 2 ) log 3 9 = 3 ) log 4 2 = 4 ) log 27 3 = 5 ) log 5 0,2 = 6 ) log 2 0,25 = 7 ) log 0,5 16 = 8 ) log 0,1 100 = 9 ) log 3 27 + log 3 1 = 10 ) log 5 25 log 5 5 = 11 ) log 4 64 + log 8 64 = 12 ) log 0,1 log 0,01 = 13 ) log 5 + log 20 = 14 ) log 2 log 0,2 = 15 ) log 32 / log 2 = 16 ) log 3 / log 81 = 17 ) log 2 3 log 3 4 = 18 ) log 9 25 log 3 5 = II ) Determinar el valor de x : 1 ) log 3 81 = x 2 ) log 5 0,2 = x 3 ) log 4 64 = ( 2 x 1 ) / 3 4 ) log 2 16 = x 3 / 2 5 ) log 2 x = 3 6 ) log 7 x = 3 7 ) log6 [ 4 ( x 1 ) ] = 2 8 ) log 8 [ 2 ( x 3 + 5 ) ] = 2 9 ) log x 125 = 3 10 ) log x 25 = 2 11 ) log 2 x + 3 81 = 2 12 ) x + 2 = 10 log 5 13 ) x = 10 4 log 2 14 ) x = log 8 / log 2 15 ) x = log 625 / log 125 16 ) log ( x + 1 ) / log ( x 1 ) = 2 17 ) log ( x 7 ) / log ( x 1 ) = 0,5 III ) Si log 2 = 0,301 , log 3 = 0,477 , log 7 = 0,845 log 5 = 0,698 entonces : 1 ) log 8 = 2 ) log 9 = 3 ) log 5 = 4 ) log 54 = 5 ) log 75 = 6 ) log 0,25 = 7 ) log ( 1 / 6 ) = 8 ) log ( 1 / 98 ) = 9 ) log ( 1 / 36 ) = 10 ) log ( 2 / 3 ) = 11 ) log 0,3 =
  • 2.