pliss
zad1.
a)√18 = 3√2
b) √50 = 5√2
c) √48 = 4√3
d)√108 = 6√3
e) √450 = 15√2
zad.2
a) 4√2 + √8 = 4√2 + 2√2 = 6√2
b) √32 - 3√2 = 4√2 - 3√2 = √2
c) √18 +√8 = 3√2 + 2√2 = 5√2
d) √200 - √50 = 10√2 - 5√2 = 5√2
e) √18 +√72 +√98 = 3√2 + 6√2 + 7√2 = 16√2
f) √800 + √242 -√162 = 20√2 + 11√2 - 9√2 = 22√2
zad.3
a)7√5+√20 = 7√5+2√5=9√5
b)√48-3=4√3 -3
c)√12+√27=2√3+3√3=5√3
d)√45-√125=3√5-5√5- -2√5
e)0,2√50+0,8√72 -0,3√32 = 0,2·5√2 +0,8·6√2 =√2+4,8√2=5,8√2
f)3√20 -1/3√45 -5√180=6√5 -√5 -30√5 = -25√5
zadanie .1.
√18=√2×9=3√2
√50=√2×25=5√2
√48=√3×16=4√3
√108=√3×36=6√3
√450=√2×225=15√2
Zadanie.2.
a)
4√2+√8=4√2+2√2=6√2
b)
√32-3√2=4√2-3√2=√2
c)
√18+√8=3√2+2√2=5√2
d)
√200-√50=10√2-5√2=5√2
e)
√18+√72+√98=3√2+6√2+7√2=16√2
f)
√800+√242-√162=20√2+11√2-9√2=22√2
Zadanie.3.
7√5+√20=7√5+2√5=9√5
√48-√3=4√3-√3=3√3
√12+√27=2√3+3√3=5√3
√45-√125=3√5-5√5=-2√5
0,2√50+0,8√72-0,3√32=√2+4,8√2-1,2√2=4,6√2
3√20-⅓√45-5√180=6√5-√5-30√5=-25√5
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zad1.
a)√18 = 3√2
b) √50 = 5√2
c) √48 = 4√3
d)√108 = 6√3
e) √450 = 15√2
zad.2
a) 4√2 + √8 = 4√2 + 2√2 = 6√2
b) √32 - 3√2 = 4√2 - 3√2 = √2
c) √18 +√8 = 3√2 + 2√2 = 5√2
d) √200 - √50 = 10√2 - 5√2 = 5√2
e) √18 +√72 +√98 = 3√2 + 6√2 + 7√2 = 16√2
f) √800 + √242 -√162 = 20√2 + 11√2 - 9√2 = 22√2
zad.3
a)7√5+√20 = 7√5+2√5=9√5
b)√48-3=4√3 -3
c)√12+√27=2√3+3√3=5√3
d)√45-√125=3√5-5√5- -2√5
e)0,2√50+0,8√72 -0,3√32 = 0,2·5√2 +0,8·6√2 =√2+4,8√2=5,8√2
f)3√20 -1/3√45 -5√180=6√5 -√5 -30√5 = -25√5
zadanie .1.
√18=√2×9=3√2
√50=√2×25=5√2
√48=√3×16=4√3
√108=√3×36=6√3
√450=√2×225=15√2
Zadanie.2.
a)
4√2+√8=4√2+2√2=6√2
b)
√32-3√2=4√2-3√2=√2
c)
√18+√8=3√2+2√2=5√2
d)
√200-√50=10√2-5√2=5√2
e)
√18+√72+√98=3√2+6√2+7√2=16√2
f)
√800+√242-√162=20√2+11√2-9√2=22√2
Zadanie.3.
a)
7√5+√20=7√5+2√5=9√5
b)
√48-√3=4√3-√3=3√3
c)
√12+√27=2√3+3√3=5√3
d)
√45-√125=3√5-5√5=-2√5
e)
0,2√50+0,8√72-0,3√32=√2+4,8√2-1,2√2=4,6√2
f)
3√20-⅓√45-5√180=6√5-√5-30√5=-25√5