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Question
If A `= [(1,2),(2,1)]` and f(x) = (1 + x) (1 - x), then f(a) is ____________.
Options
`-4 [(1,1),(1,1)]`
`-8 [(1,1),(1,1)]`
`4 [(1,1),(1,1)]`
None of these
MCQ
Fill in the Blanks
Solution
If A `= [(1,2),(2,1)]` and f(x) = (1 + x) (1 - x), then f(a) is `underline(-4 [(1,1),(1,1)]`.
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