Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Please solve RD Sharma Class 12 Chapter 15 Tangents and Normals Exercise Very Short Answer Question 4 maths textbook solution.

Please solve RD Sharma Class 12 Chapter 15 Tangents and Normals Exercise Very Short Answer Question 4 maths textbook solution.

Answers (1)

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

Hint :

1. The slope of y - axis  is \infty.

2. Using, \text{Slope of tangent}=\frac{-1}{\text {slope of normal}}

Given:  The normal of the curve y=f (x) at (x,y) is  parallel to y -axis.

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

Solution:

We know that,

The slope of y - axis is \infty

Also, The normal of the curve y=f(x) \text { at }(x, y) is parallel to y - axis.

\therefore      slope of normal = slope of y- axis

\begin{aligned} &\Rightarrow \quad \quad \frac{d y}{d x}=\text { Slope of tangent }=\frac{-1}{\text { slope of normal }} \\ &\; \; \; \; \; \; \; \; \; \; \; =\frac{-1}{\infty}=0 \end{aligned}

Hence, \frac{dy}{dx}=0

Posted by

infoexpert23

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

PM Modi's Pariksha Pe Charcha 2025 to be held next month, registrations open till January 14
anam-khan

CBSE Board Exams 2025: Online portal for availing exemptions by CWSN students opens
anam-khan

Board Exams: States agree to equivalence; no question paper ‘jumbling’ from next year, says PARAKH CEO

Latest Question