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If 135 sqrt5 x^3-2 sqrt2 y^3 div 3 sqrt5...

If `135 sqrt5 x^3-2 sqrt2 y^3 div 3 sqrt5 x- sqrt2 y= Ax^2+By^2+sqrt10 Cxy`, then the value of (A + B - 9C) is :
यदि `135 sqrt5 x^3-2 sqrt2 y^3 div 3 sqrt5 x- sqrt2 y= Ax^2+By^2+sqrt10 Cxy` है, तो (A + B - 9C) का मान क्या होगा ?

A

18

B

12

C

20

D

10

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