A) 3
B) 6
C) 8
D) 12
Correct Answer: C
Solution :
[c] \[{{a}^{4}}-{{b}^{4}}=({{a}^{2}}+{{b}^{2}})\,\,(a+b)\,\,(a-b)\] \[\therefore \]Required number \[=(3+1)\,\,(3-\,1)=8\]You need to login to perform this action.
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