Question

Q. for the curve √x + √y = 1 , DY/ DX at (1/9, 1/9) is​

Answer 1

Answer:

d(√x+√y) /dx=d(1) /dx

(1/2√x) +(1/2√y) *dy/dx=0

(1/2√y) *dy/dx=-1/2√x

-dy/dx=√y/√x

dy/dx=-√y/√x

dy/dx=-√(1/9) /√(1/9) =-1