Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

quikly
Asked by ashishkohar00 | 30 Sep, 2020, 11:59: AM
Expert Answer
Matrices A and B are inverses of each other if AB = I (Identity matrix)
AB space equals space open square brackets table row 1 0 2 row cell negative 2 end cell 1 1 row cell negative 1 end cell 1 2 end table close square brackets open square brackets table row cell negative 1 end cell cell negative 2 end cell 2 row cell negative 3 end cell cell negative 4 end cell 5 row 1 1 cell negative 1 end cell end table close square brackets equals open square brackets table row cell negative 1 plus 2 end cell cell negative 2 plus 2 end cell cell 2 minus 2 end cell row cell 2 minus 3 plus 1 end cell cell 4 minus 4 plus 1 end cell cell negative 4 plus 5 minus 1 end cell row cell 1 minus 3 plus 2 end cell cell 2 minus 4 plus 2 end cell cell negative 2 plus 5 minus 2 end cell end table close square brackets equals open square brackets table row 1 0 0 row 0 1 0 row 0 0 1 end table close square brackets rightwards double arrow AB equals straight I Hence comma space straight A space and space straight B space are space inverses space of space each space other.
Answered by Renu Varma | 02 Oct, 2020, 12:44: PM

Concept Videos

Multiple Choice Questions Practice Test Subjective Questions Webinar Subjective Questions Pre Board Assessment
Answered Unanswered My Questions My Answers
CBSE 12-science - Maths
eigen vectors
Asked by dakarapuaditya123 | 26 Dec, 2022, 08:20: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Proof LHS=RHS
Asked by shivamaihar25 | 03 Jul, 2021, 10:33: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
topic- matrices
Asked by cheragsaxena1607 | 26 Jun, 2021, 01:18: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
6, 7,
Asked by fizzapanda | 06 Oct, 2020, 12:30: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
quikly
Asked by ashishkohar00 | 30 Sep, 2020, 11:59: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
value of X if [xy+2z-3]+[y 4 5]=[4 9 12]
Asked by ronitrawat267 | 30 Sep, 2020, 09:16: AM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Let  f (x) = x2  – 5 x + 6  and  A =            1 1 0 2 1 3 2 0 1  , then  f (A) is equal to : (A)                   5 4 4 1 1 10 1 1 3 (B)                   5 4 3 1 1 10 1 1 3 (C)                  5 4 3 0 1 10 0 1 3 (D)      
Asked by vikaskumawat037 | 09 Sep, 2020, 09:58: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
[a-b. 2a+c]=[-1 5].  [2a-b. 3c+2]=[0 13]. Find the a b c and d
Asked by madankumar47 | 02 Jun, 2020, 12:49: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
Q-15
Asked by majethiyarishat9566.12sdatl | 04 May, 2020, 05:34: PM
ANSWERED BY EXPERT
CBSE 12-science - Maths
If a=[ -2 4 5] and b=[1 3 -6] verify that (ab)'=b'a'?
Asked by amitasherawat2004 | 30 Apr, 2020, 04:23: AM
ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt