Thread: 2 differentiation problems involving trigonometric funcitons

Problem #1:

A ladder 10 ft long rests against a vertical wall. Let theta (I don't have anything on my computer that gives the symbol) be the angle between the top of the ladder to the wall and let X be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does X change with respect to theta when theta= pie/3

sorry I do have some of the symbols in my computer but they don't show properly on here.


Problem #2:

Find the limit as x approaches 0 : sin(4X) / sin(6X)

sorry again the symbols just don't show up properly.



Any and all help would be appreciated

Originally Posted by forkball42

Problem #2:

Find the limit as x approaches 0 : sin(4X) / sin(6X)

With a little of make-up



Now you know you have to do.

Thank you.

Now I need some help on problem 1. I created a model representing the equation but I'm having trouble solving it.

Originally Posted by forkball42

Problem #1:

A ladder 10 ft long rests against a vertical wall. Let theta (I don't have anything on my computer that gives the symbol) be the angle between the top of the ladder to the wall and let X be the distance from the bottom of the ladder to the wall. If the bottom of the ladder slides away from the wall, how fast does X change with respect to theta when theta= pie/3

sorry I do have some of the symbols in my computer but they don't show properly on here.

I suspect you are over-thinking the problem.



What's ?

(And for the record, is spelled "pi," not "pie." You don't eat it, do you?)

-Dan