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UPSC 2014 CDS I Math Paper

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Question : 81

Total: 100

AB and CD are two chords of a circle meeting externally a t P. Then which of the following is/are correct ?
1. PA×PD=PC×PB.
2. Triangles PAC and PDB are similar.
Select the correct answer using the code given below :

1 only
2 only
Both 1 and 2
Neither 1 nor 2

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