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  • Please solve RD Sharma Class 12 Chapter 15 Tangents and Normals Exercise Very Short Answer Question 3 maths textbook solution.

Please solve RD Sharma Class 12 Chapter 15 Tangents and Normals Exercise Very Short Answer Question 3 maths textbook solution.

Answers (1)

Answer : \frac{dy}{dx}=0

Hint : The curve is parallel to x-axis then slope of tangent is equal to slope of the x- axis.

Given :

The tangent line at a point (x,y)on the curve y = f (x) is parallel to x- axis.

We have to find the value of  \frac{dy}{dx}.

Solution :

Here we have,

               Slope of x- axis is equal to zero.

Also, the tangent line at a point \left ( x,y \right )on the curve y = f (x) is parallel to x- axis.

\therefore   Slope of tangent \left ( \frac{dy}{dx} \right )= slope of x- axis

\Rightarrow \frac{dy}{dx}=0

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