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A curve is given by the equations x=sec^...

A curve is given by the equations `x=sec^2theta,y=cotthetadot` If the tangent at `Pw h e r etheta=pi/4` meets the curve again at `Q ,t h e n[P Q]` is, where [.] represents the greatest integer function, _________.

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CENGAGE ENGLISH-APPLICATION OF DERIVATIVES-NUMERICAL VALUE TYPE
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