Homework Statement
Finda dw/dt
w=3xy/x²-y²
x=t3
y=e2t
Homework Equations
w=(3t3e2t)/(t6-e4t)
The Attempt at a Solution
Well,is there anothe way to solve this, instead of dw/dt; like dw/dx * dw/dt + dw/dy * dy/dt ?
Homework Statement
What is the permanent income that corresponds to present value of the two period income path Y 1 =100, Y 2 =125 for the real interest rate r=.5? (Note: 50% not ½%!)
Homework Equations
PV = Y1 + Y2/(1+r)^t
The Attempt at a Solution
Correct Answer:
a) 110...
complete the square on -16x² + 2x + 17 + h2 = 0 or -16x² + 2x + 17 = 0, because i found positive and negative root [ x=~+-1] on -16x² + 2x + 17=0 and i don't know how solve with λ2.
Homework Statement
Minimize 2x²+2y²-2xy-9y subject
4x + 3y =,< 10 ,
y - 4x² =,< -2
x >,= 0
and y >,= 0.
I don't undersant this:
"This equation has no nonnegative root, which contradicts a nonnegativity
constraint."
and how we solve
-16x² + 2x + 17 + h2 = 0