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DeltaABC is an isosceles right angled tr...

`DeltaABC` is an isosceles right angled triangle having `angleC=90^(@)`. If D is any point on AB, then `AD^(2)+BD^(2)` is equal to

A

`CD^(2)`

B

`2CD^(2)`

C

`3CD^(2)`

D

`4CD^(2)`

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