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Number of values of n in N for which n^4...

Number of values of `n in N` for which `n^4 + 4` is prime is

A

0

B

1

C

2

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
Number of integral ……….
`:' n^(4)+4= (n^(2)+2n+2)(n^(2)-2n+2)`
`implies n^(2)+2n+2=1 or n^(2)-2n+2=1`
`implies n = -1 or n=1`
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