Question

If Sin(x + y) = 1 find dy/dx​

Answer 1

Answer:

dy/dx=-1

Step-by-step explanation:

we know that,

sin(x+y)=sinxcosy+sinycosx

Now,

-sinxsiny.dy/dx+cosycosx+cosycosx.dy/dx-sinysinx=0

cos(x+y)dy/dx=-cos(x+y)

dy/dx=-1