Flashcards
Kvadratrötter
Cards in this deck (8)
- 1Definiera kvadratroten ur 3: \(\sqrt{3}\)Det tal som gånger sig självt blir 3:
\(\sqrt{3}\approx 1.73\)
\(1.73\cdot1.73=3\) - 2Vad är \(\sqrt{25}\)?\(\sqrt{25}=5\)
(EJ -5) - 3Lös \(x^2=25\)\(x=\pm5\)
- 4Vad är \(-\sqrt{16}\)\(-\sqrt{16}=-4\)
- 5Vad är \(\sqrt{-9}\)\(\sqrt{-9}\) är inget reellt tal
- 6Vad är \(\sqrt{5}\) i potensform?\(\sqrt{5}=5^{\frac{1}{2}}\)
- 7\(\sqrt{2}\cdot\sqrt{3}=\)\(\sqrt{2}\cdot\sqrt{3}=\sqrt{2\cdot3}\)
\(\sqrt{a}\cdot\sqrt{b}=\sqrt{a\cdot b}\)
\((a,b\geq0)\) - 8\(\frac{\sqrt{5}}{\sqrt{2}}=\)\(\frac{\sqrt{5}}{\sqrt{2}}=\sqrt{\frac{5}{2}}\)
\(\frac{\sqrt{a}}{\sqrt{b}}=\sqrt{\frac{a}{b}}\)
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- User has deleted their subject information Flashcards on Kvadratrötter, created by Deleted user on 14/12/2017.
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- Deleted user · Dec 2017
- Updated
- Dec 14, 2017
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- Created by Joacim Jonsson · Dec 1, 2017
- Copied by Joacim Jonsson · Dec 14, 2017
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