Test Index

CBSE Class 12 Math 2019 All India Set 1 Solved Paper

© examsnet.com
Question : 10 of 29
Marks: +1, -0
Find a unit vector perpendicular to both the vectors a⃗\vec{a} and b⃗\vec{b}, where a⃗=i^−7j^+7k^\vec{a}=\hat{i}-7\hat{j}+7\hat{k} and b⃗=3i^−2j^+2k^\vec{b}=3\hat{i}-2\hat{j}+2\hat{k}.
OR
Show that the vectors i^−2j^+3k^,−2i^+3j^−4k^\hat{i}-2\hat{j}+3\hat{k},-2\hat{i}+3\hat{j}-4\hat{k} and i^−3j^+5k^\hat{i}-3\hat{j}+5\hat{k} are coplanar.
Go to Question: