Question

Saurav square is equal to 4 x find the focus of parabola​

Answer 1

Answer:

Let S be the focus of y

2

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

-√2