help greatly appreciated
x y^8 = 1
d(x y^8) = d(1) = 0
xd(y^8) + y^8dx = 0
x(8y^7)dy + y^8dx = 0
dy/dx = -y^8/(8xy^7)
plug in (x,y) = (1,-1) for the answer
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Verified answer
x y^8 = 1
d(x y^8) = d(1) = 0
xd(y^8) + y^8dx = 0
x(8y^7)dy + y^8dx = 0
dy/dx = -y^8/(8xy^7)
plug in (x,y) = (1,-1) for the answer
.