यदि DeltaACD में, angleABC gt 90^(@) और ...

यदि `DeltaACD` में, `angleABC gt 90^(@)` और AD लम्ब है CB पर, तो `AC^(2)` का मान होगा-

A

`AB^(2) + BC^(2) - 2BC.CD`

B

`AB^(2) + BC^(2) + 2BC.CD`

C

`AB^(2) + BD^(2) + 2BC.CD`

D

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The correct Answer is:

D

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