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Let f : R rarr R be defined by f(x) =x^2...

Let `f : R rarr R` be defined by `f(x) =x^2 +1`. Then preimages of 17 and -3 respectively, are

A

`phi, (4,-4)`

B

`(3,3), phi`

C

`(4,-4), phi`

D

`(4,-4), (2,-2)`

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