let S be focus of y^2=4x and point P is moving on curve such that its abscissa is increasing of - Maths -

Question

let S be focus of y^2=4x and point P is moving on curve such that
its abscissa is increasing of rate of 4 units/sec then rate of
increase of projection of SP on x+y=1 when P is at (4,4)

Anish Kumar · Answer

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let S be focus of y^2=4x and point P is moving on curve such that its abscissa is increasing of rate of 4 units/sec then rate of increase of projection of SP on x+y=1 when P is at (4,4)