Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Provide Solution For R.D.Sharma Maths Class 12 Chapter 15 Tangents and Normals Exercise 15 point 1 Question 20 Maths Textbook Solution.

Provide Solution For R.D.Sharma Maths Class 12 Chapter 15 Tangents and Normals Exercise 15 point 1 Question 20 Maths Textbook Solution.

Answers (1)

Answer:

            (a) \frac{1}{2}Is the correct option 

Hint:

        slope\left ( 1 \right )\times slope\left ( 2 \right )=-1

Given:

            y=2e^{x} And y=ae^{-x}

Solution:

y=2e^{x}                (1)

Differentiating w.r.t x, we get

\frac{dy}{dx}=2e^{x}

Again     y=ae^{x}                    (2)

Differentiating w.r.t x we get

\frac{dy}{dx}=ae^{x}

Since (1) and (2) intersect orthogonally

\begin{aligned} &\text { slope }(1) \times \operatorname{slope}(2)=-1 \\ &a e^{x} \times-a e^{-x}=-1 \\ &-2 a=-1 \\ &a=\frac{1}{2} \end{aligned}

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

CBSE Single Girl Child Scholarship 2024: Registration extended till January 10; eligibility criteria, amount
anam-khan

CBSE wants international boards reined in; letter to education ministry seeks directions for AIU
anam-khan

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

Latest Question