\[x=1+a+{{a}^{2}}+....\infty \,(a – McqOptions

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1.	\[x=1+a+{{a}^{2}}+....\infty \,(a
A.	\[\frac{xy}{x+y-1}\]
B.	\[\frac{xy}{x+y+1}\]
C.	\[\frac{xy}{x-y-1}\]
D.	\[\frac{xy}{x-y+1}\]
Answer» B. \[\frac{xy}{x+y+1}\]

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