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  • Find A+B if <img alt="A=\left[\begin{array}{lll}{-3} & {2} & {4} \\ {\;\;\;8} & {3} & {4}\end{array}\right], B=\left[\begin{array}{lll}{4} & {1} & {5} \\ {1} & {0}

Find A+B if A=\left[\begin{array}{lll}{-3} & {2} & {4} \\ {\;\;\;8} & {3} & {4}\end{array}\right], B=\left[\begin{array}{lll}{4} & {1} & {5} \\ {1} & {0} & {2}\end{array}\right]

Option: 1

A+B=\left[\begin{array}{lll}{7} & {3} & {9} \\ {9} & {3} & {6}\end{array}\right]


Option: 2

A+B=\left[\begin{array}{lll}{1} & {3} & {9} \\ {9} & {3} & {6}\end{array}\right]


Option: 3

A+B=\left[\begin{array}{lll}{1} & {1} & {9} \\ {9} & {3} & {5}\end{array}\right]


Option: 4

None of the above


Answers (1)

best_answer

As the orders of the matrices A and B are same (2 x 3), so we can add them

A+B=\left[\begin{array}{lll}{-3+4} & {2+1} & {4+5} \\ {\;\;\;8+1} & {3+0} & {4+2}\end{array}\right]

A+B=\left[\begin{array}{lll}{1} & {3} & {9} \\ {9} & {3} & {6}\end{array}\right]

Hence, correct option is (b)

Posted by

manish painkra

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