2.1
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The derivative is the rate of change. It is the slope of the tangent at a point.
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The derivative is the rate of change. It is the slope of the tangent at a point.
Name the chapter before you answer.
Q1. What is this section about?
The derivative
✗ Answering without naming the chapter.
✓ Name it first.
1. This section is
(a) The title comes from the book contents.
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