Question

Find dy/dx ,if x = r cos ; y = r sin ​

Answer 1

Answer: thanks

Step-by-step explanation:

Answer 2

Answer:

dy/dx = -x/y

dy/dx = -x/y It is so simple

Step-by-step explanation:

x= rcos.

y= rsin

x^2 + y^2 = r^2 (sin^2 + cos^2)

x^2 + y^2 = r^2

differentiating equation we get,

2x dx + 2y dy = 0

x dx = -y dy

so, dy/dx = -x/y

-@Mohib