A line is drawn through a fix point P( $α, β$ ) to cut the circle $x^{2} + y^{2} = r^{2}$ at A and B. Then PA.PB is equal to :

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A line is drawn through a fix point P(

α, β

) to cut the circle

x^{2} + y^{2} = r^{2}

at A and B. Then PA.PB is equal to :

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Question Text

A line is drawn through a fix point P(

α, β

) to cut the circle

x^{2} + y^{2} = r^{2}

at A and B. Then PA.PB is equal to :

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