logarytmy zadanie 5 i 6 prosze na teraz mi potrzebne
5.
a) log2 z x=3
2do potęgi 3 = x
8=x
log16 z x =2
16²=x
256=x
log z x = 2/3
10 do potęgi 2/3 = x
∛100=x
log32 z x= 2/5
32 do potęgi 2/5 = x
pierw.5 stopnia z 32 do kwadtadu =x
4 =x
log z x = 0,5
10 do potęgi -1/2 = x
1 przez √10 = x
b)
logx z 27 = 3
x³=27
x³=3³
x=3
logx z 16 = 4
x⁴ = 16
x⁴ = 2⁴
x = 2
logx z 1/8 = -3
x⁻³ =1/8
x⁻³ = (1/2)³
x⁻³ = (1/2)⁻³
x = 1/2
logx z 3 =1/3
x do potęgi 1/3 =3
x do potęgi 1/3 = 27 do potęgi 1/3
x =27
logx z 81= 4/5
x do potęgi 4/3 = 81
x do potęgi 4/3 = 27 do potęgi 4/3
x= 27
c)
log₂8√2=x
2 do potęgi x = 2³x2do potęgi 1/2
2 do potęgi x = 2 do potęgi 7/2
x=7/2
logxX⁻³=-3
x⁻³=x⁻³
logxX⁵=5
x⁵=x⁵
logxX do potęgi 2/3 = 2/3
x do potęgi 2/3 = x do potęgi 2/3
6.
a) log₃54 + log₃1,5 = log₃(54*1,5) = log₃81 = 4
b) log₂5 + log₂25,6 = log₂128 = 7
c) log₂144 - log₂9 = log₂(144/9) = log₂16 = 4
d) log₃33 - log₃11 = log₃(33/11) = log₃3 = 1
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5.
a) log2 z x=3
2do potęgi 3 = x
8=x
log16 z x =2
16²=x
256=x
log z x = 2/3
10 do potęgi 2/3 = x
∛100=x
log32 z x= 2/5
32 do potęgi 2/5 = x
pierw.5 stopnia z 32 do kwadtadu =x
4 =x
log z x = 0,5
10 do potęgi -1/2 = x
1 przez √10 = x
b)
logx z 27 = 3
x³=27
x³=3³
x=3
logx z 16 = 4
x⁴ = 16
x⁴ = 2⁴
x = 2
logx z 1/8 = -3
x⁻³ =1/8
x⁻³ = (1/2)³
x⁻³ = (1/2)⁻³
x = 1/2
logx z 3 =1/3
x do potęgi 1/3 =3
x do potęgi 1/3 = 27 do potęgi 1/3
x =27
logx z 81= 4/5
x do potęgi 4/3 = 81
x do potęgi 4/3 = 27 do potęgi 4/3
x= 27
c)
log₂8√2=x
2 do potęgi x = 2³x2do potęgi 1/2
2 do potęgi x = 2 do potęgi 7/2
x=7/2
logxX⁻³=-3
x⁻³=x⁻³
logxX⁵=5
x⁵=x⁵
logxX do potęgi 2/3 = 2/3
x do potęgi 2/3 = x do potęgi 2/3
6.
a) log₃54 + log₃1,5 = log₃(54*1,5) = log₃81 = 4
b) log₂5 + log₂25,6 = log₂128 = 7
c) log₂144 - log₂9 = log₂(144/9) = log₂16 = 4
d) log₃33 - log₃11 = log₃(33/11) = log₃3 = 1