CBSE Class 12 Math 2020 Outside Delhi Set 1 Solved Paper

Question : 24 of 36

Marks: +1, -0

Find

\left|\vec{a}\right|

and

\left|\vec{b}\right|

, if

\left|\vec{a}\right|=2\left|\vec{b}\right|

and

(\vec{a}+\vec{b})\cdot(\vec{a}-\vec{b})=12

Find the unit vector perpendicular to each of the vectors

\vec{a}=4\hat{i}+3\hat{j}+\hat{k}

and

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

Solution: 👈: Video Solution

Go to Question:

Prev Question

Next Question