A B C is a right triangle right-angle...

` A B C` is a right triangle right-angled at `A` and `A D_|_B C` . Then, `(B D)/(D C)=` `((A B)/(A C))^2` (b) `(A B)/(A C)` (c) `((A B)/(A D))^2` (d) `(A B)/(A D)`

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