If A = [ array lll 0 & -1 & 2 2 & -2 & 0 array ], B = [ array ll 0 & 1 1 & 0 1 & 1 array…
Mathematics · JEE Main · NTA Exams — Matrices and Determinants
\[\text { If } \mathrm{A}=\left[\begin{array}{lll}
0 & -1 & 2 \\
2 & -2 & 0
\end{array}\right], \mathrm{B}=\left[\begin{array}{ll}
0 & 1 \\
1 & 0 \\
1 & 1
\end{array}\right]\] and M = AB, then M–1 is equal to –
- \(\left[\begin{array}{cc} 2 & -2 \\ 2 & 1 \end{array}\right]\)
- \(\left[\begin{array}{cc} 1 / 3 & 1 / 3 \\ -1 / 3 & 1 / 6 \end{array}\right]\)
- \(\left[\begin{array}{cc} 1 / 3 & -1 / 3 \\ 1 / 3 & 1 / 6 \end{array}\right]\)
- \(\left[\begin{array}{cc} 1 / 3 & -1 / 3 \\ -1 / 3 & 1 / 6 \end{array}\right]\)
Answer
(C) [ array cc 1 / 3 & -1 / 3 1 / 3 & 1 / 6 array ]
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- | array lll 11 & 2 & 3 2 & 3 & 4 3 & 4 & 5 array | is equal to
- If A= [ array lll 1 & 2 & 3 0 & 3 & 1 2 & 1 & 2 array ] , then A (adj A) equals -
- A 0.21 H inductor and a 12Ω resistance are connected in series to a 220 V, 50 Hz ac source. The phase angle…
- If a, b and c be positive integers and x=c y+b z, y=a z+c x, z=b x+a y , where x, y and z are not all zero…
- If A= [ array ll a & b b & a array ] and A^ 2 = [ array ll x & & x array ] , then
- The system of equations kx + y + z = 1 x + ky + z = k x + y + kz = k 2 has no solution if k equals
- If A= [ array cc 2 & -1 -7 & 4 array ] and B= [ array ll 4 & 1 7 & 2 array ] then B T A T is equal to –
- Given below are two statements. STATEMENT - 1: If b c+q r=c a+r p=a b+p q=-1 then | array ccc a p & a & p b q…
More Matrices and Determinants questions · Browse all practice questions