H8 en H9 afronden

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WiskundeMiddelbare schoolvwoLeerjaar 3

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Welk soort verband heeft een randpunt?

Slide 46 - Question ouverte

Rekenregels

Slide 47 - Diapositive

Rekenregels wortels

\sqrt ​ a ​ ​ ​ \cdot \sqrt ​ b ​ ​ ​ = \sqrt ​ a b ​ ​ ​

\sqrt ​ a ​ ​ ​ + \sqrt ​ a ​ ​ ​ = 2 \sqrt ​ a ​ ​ ​

\sqrt ​ a ​ ​ ​ + \sqrt ​ b ​ ​ ​ = \sqrt ​ a ​ ​ ​ + \sqrt ​ b ​ ​ ​

c \sqrt ​ a ​ ​ ​ \cdot d \sqrt ​ b ​ ​ ​ = c \cdot d \sqrt ​ a \cdot b ​ ​ ​

\frac{​ \sqrt ​ a ​ ​ ​ ​ ​}{​ \sqrt ​ b ​ ​ ​ ​} = \sqrt ​ \frac{​ a ​ ​}{​ b ​} ​ ​ ​

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Machten

Rekenregel:

g^{​ a ​ ​} \cdot g^{​ b ​ ​} = g^{​ a + b ​ ​}

(g^{​ a ​ ​})^{​ b ​ ​} = g^{​ a \cdot b ​ ​}

\frac{​ g ^{​ a ​ ​} ​ ​}{​ g ^{​ b ​ ​} ​} = g^{​ a - b ​ ​}

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Rekenen met wortels

rekenregel wortels:

\sqrt ​ 25 \cdot ​ ​ ​ \sqrt ​ 4 ​ ​ ​ = \sqrt ​ 25 \cdot 4 ​ ​ ​ = \sqrt ​ 100 ​ ​ ​ = 10

\sqrt ​ 3 ​ ​ ​ \cdot \sqrt ​ 12 ​ ​ ​ = \sqrt ​ 36 ​ ​ ​ = 6

\sqrt ​ a ​ ​ ​ \cdot \sqrt ​ b ​ ​ ​ = \sqrt ​ a b ​ ​ ​

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Rekenregels breuken

\frac{​ a ​ ​}{​ b ​} \cdot c = \frac{​ a c ​ ​}{​ b ​}

\frac{​ a ​ ​}{​ b ​} \cdot \frac{​ c ​ ​}{​ d ​} = \frac{​ a c ​ ​}{​ b d ​}

\frac{​ a ​ ​}{​ b ​} + \frac{​ c ​ ​}{​ d ​} = \frac{​ a d ​ ​}{​ b d ​} + \frac{​ b c ​ ​}{​ b d ​} = \frac{​ a d + b c ​ ​}{​ b d ​}

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H8 belangrijke begrippen

Absoluut
Relatief
Modus
Mediaan
Spreidingsbreedte
Klasse indeling
Frequentie (tabel

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