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KCET2009MathematicsApplication of Derivatives

The tangent to a given curve y=f(x) is perpendicular to the x -axis, if

Options

  1. Ad y d x =1
  2. Bdx dy =0
  3. Cdx dy =1
  4. Dd y d x =0

Correct answer

B. dx dy =0

Step-by-step solution

If any tangent is perpendicular to x -axis, then dx dy =0 .

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