જો $A = \begin{bmatrix} \lambda & i \\ i & -\lambda \end{bmatrix}$ હોય અને $A^{-1}$ અસ્તિત્વ ધરાવતું ન હોય,તો $\lambda = $ (જ્યાં $i = \sqrt{-1}$)

  • A
    $\pm 2$
  • B
    $\pm 1$
  • C
    $0$
  • D
    $\pm 3$

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Similar Questions

જો $\left|\begin{array}{lll}x+1 & x+2 & x+a \\ x+2 & x+3 & x+b \\ x+3 & x+4 & x+c\end{array}\right|=0$ હોય,તો $a, b, c$ એ

ત્રણ બિંદુઓ $(p + 1, 1)$,$(2p + 1, 3)$ અને $(2p + 2, 2p)$ સમરેખ હોય,તો $p =$

જો $A = \begin{bmatrix} 1 & 0 & 1 \\ 2 & 1 & 0 \\ 3 & 2 & 1 \end{bmatrix}$ હોય, તો $\det(A)$ ની કિંમત શોધો.

$\left| \begin{array}{ccc} a & a + b & a + 2b \\ a + 2b & a & a + b \\ a + b & a + 2b & a \end{array} \right|$ નું મૂલ્ય શોધો.

જો $\left| \begin{array}{ccc} x+1 & 1 & 1 \\ 2 & x+2 & 2 \\ 3 & 3 & x+3 \end{array} \right| = 0$ હોય,તો $x = \dots$

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