Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

$https://latex.codecogs.com/png.image?\dpi{110}\\a=\begin{vmatrix}96&97\\98&99\\\end{vmatrix}\\ \\b=\begin{vmatrix}91&92&93\\94&95&96\\97&98&99\\\end{vmatrix}$	A. a = 0 en b = 0
	B. a = 0 en b ≠ 0
	C. a > 0 en b = 0
	D. a < 0 en b = 0
	E. a ≠ 0 en b ≠ 0

[ 5-5075 - op net sinds 6.8.17-()-4.11.2023 ]

Translation in E N G L I S H

See above	A.
	B.
	C.
	D.
	E.

Oplossing - Solution

$\\a=\begin{vmatrix}96&97\\98&99\\\end{vmatrix}=\begin{vmatrix}96&97\\2&2\\\end{vmatrix}=2(96-97)<0\\b=\begin{vmatrix}91&92&93\\94&95&96\\97&98&99\\\end{vmatrix}=\begin{vmatrix}91&92&93\\3&3&3\\6&6&6\\\end{vmatrix}=0$