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If (4+sqrt(15))^n=I+f,w h r en is an odd...

If `(4+sqrt(15))^n=I+f,w h r en` is an odd natural number, `I` is an integer and `0

A

I is an odd interger

B

I is an even interger

C

`(I+f)(1-f)=1`

D

`1-f=(4-sqrt(5))^(n)`

Text Solution

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The correct Answer is:
A, C, D
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