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

Compute [(ij+k)×(2i3jk)]×[(3i+j+k)×(2j+k)]

A
5i12j+13k
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
15i+25j15k
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
15i+25j+15k
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
5i+12j13k
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is C 15i+25j+15k
[(ij+k)×(2i3jk)]×[(3i+j+k)×(2j+k)]=[i(1(3))j((1)2)+k((3)(2))]×[i(12)j(30)+k(60)]=[4i+3jk]×[i+3j6k]=i(18(3))j(241)+k(12(3))=15i+25j+15k

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