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If (7+4sqrt3)^n=I+F where I and n are +v...

If `(7+4sqrt3)^n=I+F` where I and n are +ve integers and F is +ve proper fraction, then `(I+F)(1-F)=`

A

only I is true

B

only II is true

C

both I and II are true

D

neither I nor II true

Text Solution

Verified by Experts

The correct Answer is:
A
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