wiz-icon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

Let a be a unit vector and b be a non-zero vector not parallel to a. If u=3(a×b) and v=(a×b)×a, then (u,v)=

A
00
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
300
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
900
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
600
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 900
v=3(a×b)
v=(a×b)×a u×v=3(a×b)×[(a×b)×a] =3(a×b)×[(a×a)×(b×a)]
=3(a×b)(b×a)
=0
Angle=900
OPTION C is correct

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Line and Ellipse
MATHEMATICS
Watch in App
Join BYJU'S Learning Program
CrossIcon