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In right-angled triangle A B C in whi...

In right-angled triangle `A B C` in which `/_C=90o` , if `D` is the mid-point of `B C` , prove that `A B^2=4\ A D^2-3\ A C^2` .

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The correct Answer is:
`=(4AD^(2)-3AC^(2))`
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