Homework Help: calc - limits

Posted by terra on Monday, September 19, 2011 at 6:02pm.

I have been trying to figure out these limit problems and I get stuck on trying to move the function around to make it possible to solve.

The first one is:

lim sinx - cosx / tanx - 1
x--> (pi/4)

All I've gotten so far is to replace tanx with sinx/cosx but I don't even know if that's the way to go...

the second is:

lim sqrt(a + 2h) - sqrt(a) / h
h-->0

I tried multiplying by the conjugate, but when I multiply things out, I get stuck at:

2h / h*sqrt(a+2h) + sqrt(a)

pleaseeee help me. I have no idea how to move on from here; I'm terrible at figuring out what to do next in these situations.

No one has answered this question yet.

Answer this Question

Related Questions

math - How can I factor this: 2a^2 + 19a +42 ? I've been trying to do this ...
calc - find derivative using limit definition: f(x) = x - sqrt(x) so f'(x...
isu-math11-HELP DUE TOMM PLZ - okay ia m working on a isu and i am trying to ...
Algebra - I am having such a hard time in this class. Hopefully someone here can...
Chemistry - I don't know exactly how to start this question: A sample gas ...
Calculus - How would you find the derivative of f(x)=1/sqrtx using limits? I ...
Algebra I - I have been trying to figure this out for a long time to no avail. ...
Math - There are 80 players at the baseball tryout. 5 players are not trying out...
mgt/230 - describe how managers when applying a leadership principles can ...
Geometry - What is an equation I can use to find the sum of the first 1000 ...

For Further Reading

First Name:
School Subject:
Answer: