Derivatives
Representation of derivative in geometry
In Eq.(1), 
.
This represents the slope of the line that goes through points 
and 
. When 
the line becomes the tangent line of the curve. The tangent line intersects the curve only at point 
. The derivative 
thus represents the slope of the tangent line at 
.
Simple practices using the rules of derivative.
-
- =
- =
. -
- =
- =
- =
- =
- =
This demonstrates that
, where c = constant.
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