Odpowiedzi

2010-02-25T13:19:26+01:00
;*

1. log√5 25=x
2. logx1/27=3
3. log 1/3x=-4
1.x=4
2.x=1/3
3.x=81


wzor
loga b=x -> a do x=b

1.np.
pier z 5 do x= 25
5 do gory 1/2x= 5 do 2
1/2x=2
x=4
Najlepsza Odpowiedź!
2010-02-25T13:21:55+01:00
1.
log√5 (25) = x
x = 4 , bo (√5)⁴ = 5² = 25
2.
logx (1/27) = 3
x = 1/3 , bo (1/3)³ = 1/27
3.
log⅓ x = -4
x = 81 , bo (1/3) ⁻⁴ = 3⁴ = 81
1 5 1