x = 1 হলে , (x4−1/x4) এর মান কত?

A 1/4

B 3/4

C 1

Solution

Correct Answer: Option D

    x4−1/x
=> 1^4 - 1/1^4     [যেহেতু x = 1 দেওয়া আছে ] 
=> 1 - 1 = 0 

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