Questions
If M is a matrix of order such that and det (M) then det
detailed solution
Correct option is C
We have |M-I|=M-MMT =MI-MT =|M|I-MT =|(I-M)T| ∵M=1and IT=I =|(I-M)| ∵AT=A =(-1)3|M-I|. ∴ M-I=-|M-I|.⇒2|M-I|=0.⇒|M-I|=0.Similar Questions
Suppose A and B are two orthogonal matrices of the same size such that then
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests