| 1 | ||
log1/3 | = 4 | |
| 81 |
a możesz to znaleźć np.
tak :
1) log13 181=x ⇒ (13)x=181 ⇔ (13)x=134 ⇔
⇔ (13)x=(13)4 ⇔ x=4 ;
−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−−
2) log√2 8=x ⇒ (√2)x=8 ⇔ 212x=23 ⇔ 12x=3 / *2 ⇔
⇔ x=6 . ...