Let {a}={i}-2{j}+3{k}. If {b} is a vector ... - CBSE Class 12 ...

CBSE Class 12 Math 2020 Outside Delhi Set 2 Solved Paper

© examsnet.com

Question : 2 of 11

Marks: +1, -0

Let

\vec{a}=\hat{i}-2\hat{j}+3\hat{k}

. If

\vec{b}

is a vector such that

\vec{a}, \vec{b}=|\vec{b}|^2

and

\left|\vec{a}-\vec{b}\right|=\sqrt{7}

, then

\left|\vec{b}\right|

equals

7
14
$\sqrt{7}$
21

Solution: 👈: Video Solution

© examsnet.com

Go to Question:

Prev Question

Next Question