Homework Statement
Differentiate
e^x * cotx / 5sqrtx^2
[Sorry for not using the formatting things. They didn't seem to be working for me, and this is urgent!]
Homework Equations
The quotient rule seems like that's the way to go...
The Attempt at a Solution
At first I tried using...
Limits of Trigonometric Functions. URGENT!
Homework Statement
Evaluate stackrel{lim}{x \rightarrow0}[/tex] [sin(\frac{2e}{x3}) \bullet (arctanx)]
Homework Equations
All I know is that the equation stackrel{lim}{x \rightarrow0}[/tex] \frac{sin x}{x} = 1 might be helpful, but I'm not sure...
Homework Statement
There are infinitely many points on the curve y = \frac{sin x}{\sqrt{2}- cos x} at which the tangent line to this curve is horizontal. Find the x- and y-coordinates of one such point.
Homework Equations
y' = slope of the tangent line
Etc., etc.
The Attempt at a...