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Let f(x) =px^(2) + qx^(4) +r. Then for f...

Let `f(x) =px^(2) + qx^(4) +r`. Then for f to be on even function:

A

p,q,r can be any real numbers

B

`p,q in R` and `r in R^(+)`

C

`p,q in R^(+)` and `r in R`

D

`p,q,r in R^(+)`

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The correct Answer is:
A
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