w załaczniku
1]
=
[ 3×2²⁰+7×2¹⁹×4×13] / (13×13×2⁹×2⁵)=
[2¹⁹(6+7×2²×13)]/(2¹⁹×13×13×32)=
(13+13×4)/(13×13×32)=13(1+4)/13×13×32=5/416
2]=
[4⁻¹-3(⅔)⁻²]/[5-(½)⁻¹]=(¼-3×9/4]/(5-2)=-26/4×⅓=-2⅙
3]=
⁴√5×25×√125×⁴√25/625×√1/25×⁴√125=[ 5 do potęgi ¼×5²×5 do potegi ³/₂×5 do potegi ½]/[5⁴×5⁻¹×5 do potegi ¾]=
5 do potęgi 17/4 : 5 do potegi 15/4=5 do potęgi ½=√5
4]
128×√2×√8×⁴√8/2⁻³×⁴√4=128√16×⁴√8/2⁻³×⁴√4=2⁷×2²×2 do potęgi ¼/2⁻³=2¹²×2do poegi ¼=4096⁴√2
5]
5√12+4√75-3√48=10√3+20√3-12√3=18√3
6]
3×3 do potegi √3×3 do potegi ½×3 do potegi -4,5/27×27=
3 do potegi √3×3⁻⁹=3 do potegi (√3 -9)
7]
log 2√28-log½0,5=
log2√28=x
2 do potegi 3/2x=2³
3/2x=3
x=2
czyli : log 2√28=2
log½0,5=x
(½) do potegi x=½
x=1
czyli :
log 2√28-log½0,5=2-1=1, a 1 to liczba wymierna
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1]
=
[ 3×2²⁰+7×2¹⁹×4×13] / (13×13×2⁹×2⁵)=
[2¹⁹(6+7×2²×13)]/(2¹⁹×13×13×32)=
(13+13×4)/(13×13×32)=13(1+4)/13×13×32=5/416
2]=
[4⁻¹-3(⅔)⁻²]/[5-(½)⁻¹]=(¼-3×9/4]/(5-2)=-26/4×⅓=-2⅙
3]=
⁴√5×25×√125×⁴√25/625×√1/25×⁴√125=[ 5 do potęgi ¼×5²×5 do potegi ³/₂×5 do potegi ½]/[5⁴×5⁻¹×5 do potegi ¾]=
5 do potęgi 17/4 : 5 do potegi 15/4=5 do potęgi ½=√5
4]
128×√2×√8×⁴√8/2⁻³×⁴√4=128√16×⁴√8/2⁻³×⁴√4=2⁷×2²×2 do potęgi ¼/2⁻³=2¹²×2do poegi ¼=4096⁴√2
5]
5√12+4√75-3√48=10√3+20√3-12√3=18√3
6]
=
3×3 do potegi √3×3 do potegi ½×3 do potegi -4,5/27×27=
3 do potegi √3×3⁻⁹=3 do potegi (√3 -9)
7]
log 2√28-log½0,5=
log2√28=x
2 do potegi 3/2x=2³
3/2x=3
x=2
czyli : log 2√28=2
log½0,5=x
(½) do potegi x=½
x=1
czyli :
log 2√28-log½0,5=2-1=1, a 1 to liczba wymierna