જો $A = \begin{bmatrix} i & 0 \\ 0 & i \end{bmatrix}$ હોય,તો ${A^2} = $

  • A
    $\begin{bmatrix} 1 & 0 \\ 0 & -1 \end{bmatrix}$
  • B
    $\begin{bmatrix} -1 & 0 \\ 0 & -1 \end{bmatrix}$
  • C
    $\begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$
  • D
    $\begin{bmatrix} -1 & 0 \\ 0 & 1 \end{bmatrix}$

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જો $m[-3, 4] + n[4, -3] = [10, -11]$ હોય, તો $3m + 7n$ ની કિંમત શોધો.

જો $X = \begin{bmatrix} 3 & -4 \\ 1 & -1 \end{bmatrix}$ હોય,તો $X^n$ નું મૂલ્ય શું થાય?

જો $A = \begin{bmatrix} \sqrt{3} & 1 & -1 \\ 2 & 3 & 0 \end{bmatrix}$ અને $B = \begin{bmatrix} 2 & \sqrt{5} & 1 \\ -2 & 3 & \frac{1}{2} \end{bmatrix}$ હોય,તો $A + B = \dots \dots \dots$ શોધો.

જો $A = \begin{bmatrix} 3 & 1 \\ -1 & 2 \end{bmatrix}$ અને $A^2 - 5A = kI$ હોય,તો $k =$ . . . . . .

જો $A$ એવો ચોરસ શ્રેણિક હોય કે જેથી $A^2 = A$ થાય,તો $(I + A)^3 - 8A =$ . . . . . . .

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