यदि x=2 , y=1 हो, तो x^4 +2x^3 y -2xy^3 - y^4 कित� – McqOptions

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1.	यदि x=2 , y=1 हो, तो x^4 +2x^3 y -2xy^3 - y^4 कितना होगा ?
A.	30
B.	89
C.	63
D.	27
Answer» E.

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