Saturday

September 20, 2014

September 20, 2014

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

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.

**Answer this Question**

**Related Questions**

calc - find derivative using limit definition: f(x) = x - sqrt(x) so f'(x) = lim...

maths equations - could you please help me on this equation r = sx2/2t im really...

a ton of calc - basically, my teacher gave us a bunch of optimization problems ...

Math-Calculus - Hi, I am trying to figure out what the limit as h approaches 0 ...

Algebra I - I have been trying to figure this out for a long time to no avail. ...

math - How can I factor this: 2a^2 + 19a +42 ? I've been trying to do this for ...

Algebra - I am having such a hard time in this class. Hopefully someone here can...

Math - i am trying to transform a piece wise function, but my problem is that ...

Algebra 1 REPOST - Please Help! - I have been trying to figure this out for a ...

Another Calculus - Sorry I have been trying to figure this out all day. Find the...