Question

x squre +y squre=a squre ,than dy/dx=?

Answer 1

Answer:

$\frac{dy}{dx}=-\frac{x}{y}$

Step-by-step explanation:

$x^2+y^2=a^2\\\\diff\;\;w.r.t.\;\;to\;\;x\\\\2x+2y\frac{dy}{dx}=0\\\\2y\frac{dy}{dx}=-2x\\\\\frac{dy}{dx}=-\frac{x}{y}$

Hope it helps