Question

Vă rog repede !!!!!!!!​

Answer 1

Răspuns:

a.13

b. 23

c. 22

d.12

e.13

Explicație pas cu pas:

$4^{2}$=$2^{4}$

$8^{3}$=$2^{9}$

ne folosim de proprietatile: $a^{m}$x$a^{n}$=$a^{m+n}$(a,b,c,d,e,f)

($a^{m}$)∧n= $a^{m x n}$ (e,f)

repeti pentru fiecare subpunct

ex: f

9=$3^{2}$ =>$9^{n}$=$3^{2n}$

$3^{2n}$=$3^{11}$ x ($3^{5}$)∧3   (243=3⁵)

$3^{2n}$=$3^{11}$x $3^{5 x 3}$

$3^{2n}$=$3^{11}$ x $3^{15}$

$3^{2n}$=$3^{11+15}$

$3^{2n}$=$3^{26}$ ==> 2n=26 ==> n=13