4 lines
399 B
Plaintext
4 lines
399 B
Plaintext
# Derivatives
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A key concept in calculus is the tangent line to a graph. Intuitively, the tangent line at a point on a graph of a function is the line that "best" approximates the function nearby that point. Using the concept of a limit allows tangent lines and their slopes to be rigorously defined. That the tangent line approximates the function near a point will be exploited in different ways.
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