यदि x^2 + y^2 =41 तथा xy= 20 हो तो x तथा y � – McqOptions

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1.	यदि x^2 + y^2 =41 तथा xy= 20 हो तो x तथा y का औसत होगा ?
A.	2.3
B.	3.6
C.	7.8
D.	4.5
Answer» E.

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