Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

$https://latex.codecogs.com/png.image?\dpi{110}\frac{1+\frac 1a}{1-\frac 1a}=$	A. $\boldsymbol{-\,1}$
	B. $\boldsymbol{\frac {2a\,+\,1} {a} }$
	C. $\boldsymbol{\frac {a^2\,-\,1} {a^2} }$
	D. $\boldsymbol{\frac {a\,-\,1} {a\,+\,1} }$
	E. $\boldsymbol{\frac {a\,+\,1} {a\,-\,1} }$

[ B-6000 - op net sinds .2.2022-(E)-3.11.2023 ]

Translation in E N G L I S H

See above

Oplossing - Solution

$\large {\color{Cyan} \mid }\newline {\color{DarkGreen} \frac{1+\frac{1}{a}}{1-\frac{1}{a}}=\frac{\frac{a+1}{a}}{\frac{a-1}{a}}=\frac{a+1}{a}\cdot \frac{a}{a-1}=\frac{a+1}{a-1} }$

$https://latex.codecogs.com/png.image?\dpi{110}\frac{1+\frac 1a}{1-\frac 1a}=$	A. \(\boldsymbol{-\,1}\)
	B. \(\boldsymbol{\frac {2a\,+\,1} {a} }\)
	C. \(\boldsymbol{\frac {a^2\,-\,1} {a^2} }\)
	D. \(\boldsymbol{\frac {a\,-\,1} {a\,+\,1} }\)
	E. \(\boldsymbol{\frac {a\,+\,1} {a\,-\,1} }\)