Wiskunde Multiple Choice Vraag

$\frac{1+\cot13^\circ}{1+\tan13^\circ}=$	A. 1
	B. tan 13°
	C. tan² 13°
	D. cot 13°
	E. cot² 13°

[ 4-3312 - op net sinds 25.7.2026-(E)- ]

Translation in E N G L I S H

IN CONSTRUCTION

Oplossing - Solution

$\frac{1+\cot13^\circ}{1+\tan13^\circ}=\frac{1+\cot13^\circ}{1+\frac{1}{\cot13^\circ}}=\frac{\cot13^\circ.(1+\cot13^\circ)}{\cot13^\circ+1}=\cot13^\circ$

GWB