If A + B = [ array ll 7 & 4 8 & 9 array ] and A-B= [ array ll 1 & 2 0 & 3 array ] then…

Mathematics · JEE Main · NTA ExamsMatrices and Determinants

If A + B =\(\left[\begin{array}{ll} 7 & 4 \\ 8 & 9 \end{array}\right] \text { and } A-B=\left[\begin{array}{ll} 1 & 2 \\ 0 & 3 \end{array}\right]\) then the value of A is-
  1. \(\left[\begin{array}{ll} 3 & 1 \\ 4 & 3 \end{array}\right]\)
  2. \(\left[\begin{array}{ll} 4 & 3 \\ 4 & 6 \end{array}\right]\)
  3. \(\left[\begin{array}{ll} 6 & 2 \\ 8 & 6 \end{array}\right]\)
  4. \(\left[\begin{array}{ll} 7 & 6 \\ 8 & 6 \end{array}\right]\)

Answer

(B) [ array ll 4 & 3 4 & 6 array ]

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