If 3A = bmatrix 1 & 2 & 2 \\ 2 & 1 & -2 \\ x & 2 & y bmatrix and AA^T = I, then x + y is equal to Option 1: 1 Option 2: -1 Option 3: 3 Option 4: -3

The answer is '-3'. View full solution:

CUET Mathematics - If 3A = bmatrix 1 & 2 & 2 \\ 2 & 1 & -2 \\ x & 2 & y bmatrix and AA^T = I, then x + y is equal to | PYQs + Solutions

CUET Mathematics 2022 6 Aug Shift 2

Algebra

Hard

$1$

$-1$

$3$

$-3$

✅ Correct Option: 4

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