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In A B C with fixed length of B C , the...

In ` A B C` with fixed length of `B C ,` the internal bisector of angle `C` meets the side `A Ba tD` and the circumcircle at `E` . The maximum value of `C DxD E` is `c^2` (b) `(c^2)/2` (c) `(c^2)/4` (d) none of these

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