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Matrics — Maths STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMathsMatrics1 Mark
MCQ
If $\mathrm{A}=\left(\begin{array}{ll}1 & 2 \\ 3 & 4\end{array}\right), \operatorname{adj}=\left(\begin{array}{ll}4 & a \\ -3 & b\end{array}\right)$ then the values of $\mathrm{a}$ and $\mathrm{b}$ are,
  • ✓
    a = – 2, b = 1
  • B
    a = 2, b = 4
  • C
    a = 2, b = –1
  • D
    a = 1, b = –2
✓

Answer

Correct option: A.
a = – 2, b = 1
a = – 2, b = 1

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