sarah, I am not certain what you meant to type.
i get this
dy/dx= -4x * e^ what is the exponent of e?
Find the particular solution of the given differential equation
dydx=−4xe(y−x^2);y=11whenx=1.
THanks
3 answers
the exponent is (y-x^2)
dy/dx=−4xe^(y−x^2)
dy/dx = -4xe^y e^(-x^2)
-e^-y dy = 4x e^(-x^2)
e^-y = c-2e^(-x^2)
y = -ln(c - 2e^(-x^2))
since y(1) = 11,
-ln(c-2e^-1) = 11
c - 2e^-1 = e^-11
c = 2e^-1 + e^-11
dy/dx = -4xe^y e^(-x^2)
-e^-y dy = 4x e^(-x^2)
e^-y = c-2e^(-x^2)
y = -ln(c - 2e^(-x^2))
since y(1) = 11,
-ln(c-2e^-1) = 11
c - 2e^-1 = e^-11
c = 2e^-1 + e^-11