a –4 -2 1 \dfrac{a-1}{a+1} \dfrac{a^2-1}{a} \dfrac{a}{a^2+1} a 2 4 \dfrac{a-1}{a+1} \dfrac{a^2-1}{a} \dfrac{a}{a^2+1}

Задание

Заполни таблицу

\(a\)	\(–4\)	\(-2\)	\(1\)
\(\dfrac{a-1}{a+1}\)	[ ]	[ ]	[ ]
\(\dfrac{a^2-1}{a}\)	[ ]	[ ]	[ ]
\(\dfrac{a}{a^2+1}\)	[ ]	[ ]	[ ]

\(a\)	\(2\)	\(4\)
\(\dfrac{a-1}{a+1}\)	[ ]	[ ]
\(\dfrac{a^2-1}{a}\)	[ ]	[ ]
\(\dfrac{a}{a^2+1}\)	[ ]	[ ]