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[" 52.If "x*y=x^(2)+y^(2)-xy" ,then the ...

[" 52.If "x*y=x^(2)+y^(2)-xy" ,then the value of "9*1(c)175],[[" (a) "93," (b) "103," (c) "15," (d) "200],[" 53.If "a*b=ab," find "18," (d) "121]]

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