Question
If a/b =c/d =e/f =2/3 Then
(2a2-3c2+4e2)/ (2b2-3d2+4f2) =?Solution
a/b=c/d=e/f =2/3 a=c=e= 2 And b=d=f =3 (2a2-3c2+4e2)/ (2b2-3d2+4f2) = (8-12+16) / (18-27+36) =12/27 = 4:9
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