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 22 Algebra of Vectors Exercise Very Short Answer Type Question 15 Maths Textbook Solution.

Provide Solution For  R.D. Sharma Maths Class 12 Chapter 22 Algebra of Vectors  Exercise Very Short Answer Type  Question 15 Maths Textbook Solution.

Answers (1)

Answer: m=\pm \frac{1}{a}

Hint: You must know the rules of vector functions

Given: If \vec{a} is a non-zero vector of modulus a and m is a non-zero scalar such that m\vec{a} is a unit vector, find m.

Solution: \vec{a}is non-zero vector with modulus a and m

            Also m\vec{a} is unit vector

Therefore,

            \begin{aligned} &\qquad\mid m \vec{a} \mid=1 \\ \end{aligned}

            \begin{aligned} &\Rightarrow|m||\vec{a}|=1 \\ \end{aligned}

            \begin{aligned} \Rightarrow|m| a=1 \\ \end{aligned}

            \begin{aligned} |m|=\frac{1}{a} \\ \end{aligned}

               \begin{aligned} &\Rightarrow m=\pm \frac{1}{a} \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

CBSE extends single girl child scholarship registration deadline till November 20
anam-khan

CBSE reminds schools to submit registration data of Class 9, 11 students by October 16

Latest Question