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UP TGT Mathematics Calculus Differentiation Test Series - Part 3

The tangent is parallel to the x-axis (horizontal tangent) when:

Type: MCQ • Marks: 1
The tangent is parallel to the x-axis (horizontal tangent) when:
Options
A. dy / dx = 0
B. dx / dy = 0
C. dy / dx = 1
D. dy / dx = undefined
Explanation
Horizontal tangent occurs when dy/dx = 0.
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