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→Problem-1
= Hints for difficult problems =
= Hints for difficult problems =
== Problem-1==
== Problem-1==
#Tanjents AP and AQ are drawn to circle with centre O, from an external point A. Prove that ∠PAQ=2.∠ OPQ
#Tanjents AP and AQ are drawn to circle with centre O, from an external point A. Prove that ∠PAQ=2.∠ OPQ <br>
[[File:Screenshot from 2014-08-12 14:43:11.png|100px]]
[[File:Screenshot from 2014-08-12 14:43:11.png|100px]]