TS EAMCET · Maths · Matrices
If , then
- A
- B Identity Matrix
- C Null Matrix
- D
Answer & Solution
Correct Answer
(D)
Step-by-step Solution
Detailed explanation
A=1-112-10100 A2=1-112-101001-112-10100 ⇒A2=0010121-11 Now, A3=0010121-111-112-10100, ∵A3=A2.A ⇒A3=1004-10101 Now, A6=A3.A3 ⇒A6=1004-100011004-10001 ⇒A6=100010001 Also, A6=1 ⇒A≠0 So, A is non-singular. ⇒A6=I Also, AA-1=A-1A=I…
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