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In a A B C , D and E are points on t...

In a ` A B C` , `D` and `E` are points on the sides `A B` and `A C` respectively such that `D E B C` If `A D=8x-7,\ \ D B=5x-3,\ \ A E=4x-3` and `E C=(3x-1)` , find the value of `x` . (ii) If `A D=4x-3,\ \ A E=8x-7,\ \ B D=3x-1` and `C E=5x-3` , find the volume `x` . (iii) If `A D=2. 5\ c m` , `B D=3. 0\ c m` and `A E=3. 75\ c m` , find the length of `A C` .

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