Get Answers to all your Questions

header-bg qa

Explain Solution R.D. Sharma Class 12 Chapter 22 Algebra of Vectors  Exercise Very Short Answer Type Question 32 Maths Textbook Solution.

Answers (1)

Answer: \left ( 2,3,1 \right )

Hint: You must know the rules of vector functions

Given: Find the position vector of mid-point of line AB where A\left ( 3,4,-2 \right ),B\left ( 1,2,4 \right )

Solution: A\left ( 3,4,-2 \right ),B\left ( 1,2,4 \right )

Let C is the mid-point

∴ Position vector of C=\frac{\left ( 3\hat{i}+4\hat{j}-2\hat{k} \right )+\left ( \hat{i}+2\hat{j}+4\hat{k} \right )}{2}

=\frac{\left ( 4\hat{i}+6\hat{j}+2\hat{k} \right )}{2}

\left ( 2\hat{i}+3\hat{j}+\hat{k} \right )

Hence position vector=\left ( 2,3,1 \right )

Posted by

infoexpert21

View full answer

Crack CUET with india's "Best Teachers"

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