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DeterminantsEasy JEE math MCQ

The value of $\begin{vmatrix} 1 & 2 \\ 3 & 4 \end{vmatrix}$ is:
  1. A. $-2$
  2. B. $2$
  3. C. $10$
  4. D. $-10$

Solution

$\begin{vmatrix} 1 & 2 \\ 3 & 4 \end{vmatrix} = 1(4) - 2(3) = 4 - 6 = -2$

MATH

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The value of 1234\begin{vmatrix} 1 & 2 \\ 3 & 4 \end{vmatrix} is:
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Determinants — Easy JEE Mathematics MCQ | MyGoalPrep