Question

$y = {1 - x}^{2} \div {x}^{2}$
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Answer 1

Step-by-step explanation:

$y = 1 - x {}^{2} \div {x}^{2}$

can be written as 1/x^2-1

${x}^{ - 2} - 1$

is the solution but your question is not clear about what to find