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If (2x-y) : (5x+3y) = 3:8, then find the...

If (2x-y) : (5x+3y) = 3:8, then find the value of `(x^2+y^2) : (x^2-y^2)` .
यदि (2x-y) : (5x+3y) = 3:8 है, तो `(x^2+y^2) : (x^2-y^2)` का मान ज्ञात करें |

A

`145:144 `

B

` 257:255`

C

`144:143`

D

` 133:122`

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