Homework Statement
If (r, θ) are the polar coordinates of a point then describe the region defined by the restrictions
-1 < r < 0, π/2 < θ < 3π/2
Homework Equations
No clue
The Attempt at a Solution
I tried drawing the curve in a polar grid by starting at π/2 and finishing at 3π/2. I was...
Thank you all! This helps a lot. I suppose I just need more experience with natural logs and the number e. When I see problems involving them I'm pretty lost! Thanks again.
Homework Statement
Calculate limit as x approaches infinity of (e^x - x^3)
Homework Equations
ln e^x = x
e^(ln x) = x
The Attempt at a Solution
I tried substituting x = ln e^x and got (e^x - (ln e^x)^3). I'm pretty much lost and this is my only attempt so far.
I'm thinking that this is an...