Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

$https://latex.codecogs.com/png.image?\dpi{110}\frac{\sin(90^\circ-x )}{\cot (180^\circ-x)}=$	A. sin x
	B. − sin x
	C. csc x
	D. − csc x
	E. − sec x

[ 4-5858 - op net sinds 1.4.2020-(E)-30.10.2023 ]

$https://latex.codecogs.com/png.image?\dpi{110}\frac{\sin(90^\circ-x )}{\cot (180^\circ-x)}=$	A. sin x
	B. − sin x
	C. csc x
	D. − csc x
	E. − sec x

$\frac{\sin(90^\circ - x)}{\cot(180^\circ-x)}=\frac{\cos x}{-\cot x}=-\cos x.\tan x =-\cos x.\frac{\sin x}{\cos x}= -\sin x$