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यदि a + (1)/( a) = 3 है , तो (a^(4) + (1...

यदि `a + (1)/( a) = 3` है , तो `(a^(4) + (1)/( a^4) )` बराबर है:

A

77

B

47

C

81

D

27

लिखित उत्तर

Verified by Experts

The correct Answer is:
B
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