यदि x:y=7:3 है तो (xy+y^(2))/(x^(2)-y^(2...

यदि `x:y=7:3` है तो `(xy+y^(2))/(x^(2)-y^(2))` का मान क्या होगा?

A

`(3)/(4)`

B

`(4)/(3)`

C

`(3)/(7)`

D

`(7)/(3)`

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