Question

Cos(xy)= x +y (Differtiatewrt x)

Answer 1

Step-by-step explanation:

Cos(xy) = x + y

Differentiate w.r.t x

⭕

✔-sin(xy)d/dx(xy)=1+dy/dx

✔-sin(xy)[x dy/dx + y] = 1+ dy/dx

✔-x sin (xy) dy/dx - y sin(xy) -1 - dy/ dx=0

✔-[y sin(xy) + 1] -[ 1 + x sin(xy)]dy/dx=0

✔[1+xsin(xy)]dy/dx= - [1+y sin(xy)]

✔dy/dx= - [1+ysin(xy)]/[1+xsin(xy)]