ધારો કે $A = \begin{bmatrix} x + \lambda & x & x \\ x & x + \lambda & x \\ x & x & x + \lambda \end{bmatrix}$,તો $A^{-1}$ અસ્તિત્વ ધરાવે જો

  • A
    $x \ne 0$
  • B
    $\lambda \ne 0$
  • C
    $3x + \lambda \ne 0, \lambda \ne 0$
  • D
    $x \ne 0, \lambda \ne 0$

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Similar Questions

ધારો કે $A = \begin{bmatrix} 3 & 7 \\ 2 & 5 \end{bmatrix}$ અને $B = \begin{bmatrix} 6 & 8 \\ 7 & 9 \end{bmatrix}$ છે. ચકાસો કે $(AB)^{-1} = B^{-1} A^{-1}$.

ધારો કે $f(x) = \int \frac{7x^{10} + 9x^{8}}{(1 + x^{2} + 2x^{9})^{2}} dx$, $x > 0$, $\lim_{x \to 0} f(x) = 0$ અને $f(1) = \frac{1}{4}$. જો $A = \begin{bmatrix} 0 & 0 & 1 \\ \frac{1}{4} & f'(1) & 1 \\ \alpha^{2} & 4 & 1 \end{bmatrix}$ અને $B = \text{adj}(\text{adj } A)$ એવા હોય કે જેથી $|B| = 81$, તો $\alpha^{2}$ ની કિંમત શોધો.

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

જો $A = \begin{bmatrix} a & c \\ d & b \end{bmatrix}$ હોય,તો $A^{-1} = $

${\left[ {\begin{array}{*{20}{c}}1&3\\3&{10}\end{array}} \right]^{ - 1}} = $

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