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9¢ ()9=aa-s=v 47 bl Bl P R ® |
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Answer» a=5-ba+b=5-------------(1)b=6÷aab=6---------------(2)a³+b³=(a+b)(a²+b²-ab) =(a+b)(a²+b²+2ab-3ab) =(a+b)((a+b)²-3ab)put values from eq 1 and 2a³+b³=5*(5²-3*6) =5*(25-18)=35 a=5-ba+b=5.........(1)ab=6............(2)eq(1) or (2)......a³+b³=5*(5²-3*6)=5*(25-18)35 ans |
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