If a current of one- or two-tenths of an ampere were to flow into one of your hands and out the other, you would probably be ele
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Answer:
The rate of change of the area when the bottom of the ladder (denoted by ) is at 36 ft. from the wall is the following:
Explanation:
The Area of the triangle is given by where
(by using the Pythagoras' Theorem) and
is the length of the base of the triangle or the distance between the bottom of the ladder and the wall.
The area is then
The rate of change of the area is given by its time derivative
Product rule
Chain rule
In here we can identify ,
and
.
The result is then