wiz-icon
MyQuestionIcon
MyQuestionIcon
3
You visited us 3 times! Enjoying our articles? Unlock Full Access!
Question

If A=[1tan xtan x1],ATA1= ___


A

[cos 2xsin 2xsin 2xcos 2x]

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B

[cos 2xsin 2xsin 2xcos 2x]

No worries! We‘ve got your back. Try BYJU‘S free classes today!
C

[1tan2 x2 tan x2tan x1tan2 x]

No worries! We‘ve got your back. Try BYJU‘S free classes today!
D

[1tan2 x2 tan x2 tan x1tan2 x]

No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is A

[cos 2xsin 2xsin 2xcos 2x]


A=[1tan xtan x1]|A|=1+tan2 xadj(A)=[1tan xtan x1]A1=11+tan2 x[1tan xtan x1]AT=[1tan xtan x1]ATA1=11+tan2 x[1tan xtan x1][1tan xtan x1]=11+tan2 x[1tan2x2 tan x2 tan x1tan2x]=1tan2x1+tan2x2 tan x1+tan2 x2 tan x1+tan2 x1tan2 x1+tan2x=[cos 2xsin 2xsin 2xcos 2x]


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