If (ad-bc)/(a-b-c+d)=(ac-bd)/(a-b+c-d) then show that each ratio=(a+b+c+d)/4

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  2. If x=(2√24)/(√3 √2) then find the value of (x √8)/(x-√8) (x √12)/(x-√12)
  3. (x^3 3x)/(6x^2 8)=(y^3 27y)/(9y^2 27) find x∶y
  4. If (a-c) ∶(b-c)=a^2 ∶ b^2 then prove that (a c) ∶(b c)=(a/b 2) ∶(b/a 2)
  5. If (a^2 b^2 c^2 )(x^2 y^2 z^2 )=(ax by cz)^2 then prove that a∶b∶c=x∶y∶z
  6. If (ad-bc)/(a-b-c d)=(ac-bd)/(a-b c-d) then show that each ratio=(a b c d)/4
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