Question

For (x^2+ y^2 ) = x^2-y^2 find the points where the tangents are horizontal​

Answer 1

Step-by-step explanation:

2(x2 + y2)2 = 81(x2 - y2)

Here, dy/dx represents slope.

We know that the slope of a horizontal line is zero. Therefore,

the points where the tangent is horizontal are

x = ±(√243)/4 and y = ±9/2.

Mark as Brainliest.