Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • Explain Solution R.D. Sharma Class 12 Chapter 28 The Plane Exercise 28.13 Question 11 Sub Question 2 Maths Textbook Solution.

Explain Solution R.D. Sharma Class 12 Chapter 28 The Plane  Exercise 28.13 Question 11 Sub Question 2 Maths Textbook Solution.

Answers (1)

                \begin{aligned} &\vec{n}=3 i-j-k+\lambda(2 i-2 j+k) \end{aligned} is of the form \begin{aligned} p(3+2 \lambda,-1-2 \lambda,-1+\lambda) \\ \end{aligned}  lies in the plane

               \begin{aligned} &\vec{n} \cdot(-9 i-3 j+k) \\ &9(3+2 \lambda)-3(-1-2 \lambda)-(-1+2)=14 \\ &27+18 \lambda-3-6 \lambda+1-\lambda=14 \\ &11 \lambda=-11 \\ &\lambda=-1 \\ \end{aligned}

Thus the required point of intersection is \begin{aligned} &p(3+2 \lambda,-1-2 \lambda,-1+\lambda) \\ \end{aligned} put  value\lambda  in the equation

\begin{aligned} &p[3+2(-1),-1-2(-1),-1+(-1)] \\ &p(1,1,-2) \end{aligned}

Posted by

infoexpert21

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

Board Exam Result 2025 Live: UK Board 10th, 12th results tomorrow; AP SSC, TS Inter, UP, CBSE updates
anam-khan

When will CBSE Class 12 results 2025 be declared? Last two years' trends
anam-khan

CBSE Class 10, 12 board exams 2025 from April 7 to 11 for sports students

Latest Question