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232\sqrt[]{23^2}232 =
529
46
23
-23
(−18)2\sqrt[]{\left(-18\right)^2}(−18)2 =
18
-18
36
324
Η εξίσωση X2= 49Χ^2=\ 49X2= 49 έχει λύσεις:
x =7
x =-7
x = 7 ή x = -7
καμία λύση(αδύνατη)
Αν α = κ\sqrt[]{α}\ =\ κα = κ με α > 0 και κ > 0 τότε:
α2=κα^2=κα2=κ
α2= κ2α^2=\ κ^2α2= κ2
α = κ
κ2= ακ^2=\ ακ2= α
152⋅25\sqrt[]{15^2\cdot25}152⋅25 =
15
75
105
125
1600⋅0,09\sqrt[]{1600\cdot0,09}1600⋅0,09 =
12
120
1200
4800
182\frac{\sqrt[]{18}}{\sqrt[]{2}}218 =
9
3
6
2⋅5⋅6,4\sqrt[]{2}\cdot\sqrt[]{5}\cdot\sqrt[]{6,4}2⋅5⋅6,4 =
3,2
32
10
8
Αν x = 0,2\sqrt[]{x}\ =\ 0,2x = 0,2 τότε X =
0,4
0,04
0,02
0,08
Αν x = 34\sqrt[]{x}\ =\ \frac{3}{4}x = 43 τότε x =
916\frac{9}{16}169
169\frac{16}{9}916
916 ηˊ −916\frac{9}{16}\ ή\ -\frac{9}{16}169 ηˊ −169
−916-\frac{9}{16}−169
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10 questions
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