यदि n प्राकृत संख्या हो तो n^2 – McqOptions

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1.	यदि n प्राकृत संख्या हो तो n^2(n^2 -1 ) सदैव किससे विभाजित होगा ?
A.	21
B.	12
C.	78
D.	56
Answer» C. 78

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