wiz-icon
MyQuestionIcon
MyQuestionIcon
6
You visited us 6 times! Enjoying our articles? Unlock Full Access!
Question

If a,b,c are noncoplanar vectors and λ is a real number,then[λ(a+b),λ2b,λc]=[a,b+c,b] for

A
no value ofλ
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
exactly one value ofλ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
exactly two values ofλ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
exactly three values ofλ
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C no value ofλ
Given:[λ(a+b),λ2b,λc]
=λ4[a+b,b,c]
=λ4[a,b,c]+λ4[b,b,c]
=λ4[a,b,c]+λ4.0
=λ4[a,b,c]
Right side =[a,b+c,b]
=[a,b,b]+[a,c,b]
=0+[a,c,b]
=[a,b,c]
λ4[a,b,c]=[a,b,c]
(λ4+1)[a,b,c]=0
But [a,b,c]0λ4+1=0,no real λ

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