Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

Welk getal is verschillend van de vier overige getallen ?	A. $\large\boldsymbol{\frac {12} {\sqrt {18}} }$
	B. $\boldsymbol{2\,\sqrt 2}$
	C. $\large\boldsymbol{\frac {2 \sqrt {18}} {3} }$
	D. $\boldsymbol{\sqrt 8 }$
	E. $\large\boldsymbol{\frac {3\,\sqrt 2} {2} }$

[ 4-1020 - op net sinds 27.3.13-(E)-21.11.2024 ]

Translation in E N G L I S H

Which number is different from the other four numbers ?	A. $\large\boldsymbol{\frac {12} {\sqrt {18}} }$
	B. $\boldsymbol{2\,\sqrt 2}$
	C. $\large\boldsymbol{\frac {2 \sqrt {18}} {3} }$
	D. $\boldsymbol{\sqrt 8 }$
	E. $\large\boldsymbol{\frac {3\,\sqrt 2} {2} }$

Oplossing - Solution

$https://latex.codecogs.com/png.image?\dpi{110}\\A.\;\frac{12}{\sqrt{18}}=\frac{12}{\sqrt{9.2}}=\frac{12}{3\sqrt2}=\frac{4\sqrt2}{\sqrt2.\sqrt2}=\frac{4\sqrt2}{2}=2\sqrt2\\\\B.\;2\sqrt2=2\sqrt2\\\\C.\;\frac{2\sqrt{18}}{3}=\frac{2.\sqrt{9.2}}{3}=\frac{2.3\sqrt2}{3}=2\sqrt2\\\\D.\;\sqrt8=\sqrt{4.2}=2\sqrt2\\\\E.\;\frac{3\sqrt2}{2}$

Welk getal is verschillend van de vier overige getallen ?	A. \(\large\boldsymbol{\frac {12} {\sqrt {18}} }\)
	B. \(\boldsymbol{2\,\sqrt 2}\)
	C. \(\large\boldsymbol{\frac {2 \sqrt {18}} {3} }\)
	D. \(\boldsymbol{\sqrt 8 }\)
	E. \(\large\boldsymbol{\frac {3\,\sqrt 2} {2} }\)

Which number is different from the other four numbers ?	A. \(\large\boldsymbol{\frac {12} {\sqrt {18}} }\)
	B. \(\boldsymbol{2\,\sqrt 2}\)
	C. \(\large\boldsymbol{\frac {2 \sqrt {18}} {3} }\)
	D. \(\boldsymbol{\sqrt 8 }\)
	E. \(\large\boldsymbol{\frac {3\,\sqrt 2} {2} }\)