If x : y=3 : 1 then find\[({{x}^{3}}-{{y}^{3}}):({{x}^{3}}+{{y}^{3}})= – McqOptions

MCQOPTIONS

1.	If x : y=3 : 1 then find\[({{x}^{3}}-{{y}^{3}}):({{x}^{3}}+{{y}^{3}})=?\]
A.	13 : 14
B.	14 : 13
C.	10 : 11
D.	11 : 10
Answer» B. 14 : 13

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