Originally Posted by

**falconed** Thanks for the reply topsquark. However, I think I may be going about this a very difficult way.

**The initial question is:**

A 5m ladder is resting on a wall. When the base of the ladder is 4m from the wall the base is moving at a rate of 2m/s (away from the wall). Find the rate in which the angle between the ground and the ladder is changing.

Now this is how I get to implicit differentiation. Yet I bet I am making it hard for myself.

Any thoughts on this? Also I'm new to this forum how can I place equations into the post?