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

The value of the determinant ∣ ∣ ∣ ∣ ∣(a1b1)2(a1b2)2(a1b3)2(a1b4)2(a2b1)2(a2b2)2(a2b3)2(a2b4)2(a3b1)2(a3b2)2(a3b3)2(a3b4)2(a4b1)2(a4b2)2(a4b3)2(a4b4)2∣ ∣ ∣ ∣ ∣ is

A
dependent on ai,i=1,2,3,4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
dependent on bi,i=1,2,3,4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
dependent on aij,bi,i=1,2,3,4
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
0
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
Open in App
Solution

The correct option is D 0
Δ=∣ ∣ ∣ ∣ ∣(a1b1)2(a1b2)2(a1b3)2(a1b4)2(a2b1)2(a2b2)2(a2b3)2(a2b4)2(a3b1)2(a3b2)2(a3b3)2(a3b4)2(a4b1)2(a4b2)2(a4b3)2(a4b4)2∣ ∣ ∣ ∣ ∣=∣ ∣ ∣ ∣a12+b122a1b1a12+b222a1b2a12+b322a1b3a12+b422a1b4a22+b122a2b1a22+b222a2b2a22+b322a2b3a22+b422a2b4a32+b122a3b1a32+b222a3b2a32+b322a3b3a32+b422a3b4a42+b122a4b1a42+b222a4b2a42+b322a4b3a42+b422a4b4∣ ∣ ∣ ∣=∣ ∣ ∣ ∣a12a12a12a12a22a22a22a22a32a32a32a32a42a42a42a42∣ ∣ ∣ ∣+∣ ∣ ∣ ∣b12b22b32b42b12b22b32b42b12b22b32b42b12b22b32b42∣ ∣ ∣ ∣+∣ ∣ ∣ ∣2a1b12a1b22a1b32a1b42a2b12a2b22a2b32a2b42a3b12a3b22a3b32a3b42a4b12a4b22a4b32a4b4∣ ∣ ∣ ∣=0+0+0=0
Hence, option 'D' is correct.

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