Let A=\left(\begin{array}{ccc}1 & 0 & 0 \ 2 & 1 & 0 \ 3 & 2 & 1)\end{array}. If u_1 and u_2 are column matrices such that A u_1=\left(\begin{array}{c}1 \ 0 \ 0)\end{array} and A u_2=\left(\begin{array}{c}0 \ 1 \ 0)\end{array}, then u_1+u_2 is equal to : [AIEEE 2012]

Correct Answer is : (1−1−1)

\left(\begin{array}{c}-1 \ 1 \ 0)\end{array}

\left(\begin{array}{c}-1 \ 1 \ -1)\end{array}

\left(\begin{array}{c}-1 \ -1 \ 0)\end{array}

\left(\begin{array}{c}1 \ -1 \ -1)\end{array}

Matrices and Determinants Part 1

Section: Mathematics

Question : 74 of 100

Marks: +1, -0

Let A=(

). If u1 and u2 are column matrices such that Au1=(

) and Au2=(

), then u1+u2 is equal to :

[AIEEE 2012]

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