Question

a-1=2
find
$a {}^{2} + 1 \div a {}^{2}$


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Answer 1

Answer:

a =3

Step-by-step explanation:

${a}^{2} + 1 \div {a}^{2} \\( a = 3) \\ {3 }^{2} + 1 \div {3}^{2} = \\ 9 + 1 \div 9 = \\( 81 + 1) \div 9 = \\ \frac{82}{9} \\ ans$

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