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JEE Mains · Maths · STD 12 - 3 and 4 . metrices and determinant

ધારો કે શ્રેણિક \(A=\left[\begin{array}{lll}1 & 0 & 0 \\ 1 & 0 & 1 \\ 0 & 1 & 0\end{array}\right]\) એ \(A^n=A^{n-2}+A^2-I\) ને \(\mathrm{n} \geq 3\) માટે સંતોષે છે. તો \(\mathrm{A}^{50}\) ના તમામ ઘટકોનો સરવાળો છે :-

  1. A \(53\)
  2. B \(52\)
  3. C \(39\)
  4. D \(44\)
Verified Solution

Answer & Solution

Correct Answer

(A) \(53\)

Step-by-step Solution

Detailed explanation

\begin{aligned} & \mathrm{A}^{50}=\mathrm{A}^{48}+\mathrm{A}^2-\mathrm{I} \\ & =\mathrm{A}^{46}+2\left(\mathrm{~A}^2-\mathrm{I}\right) \\ & =\mathrm{A}^{44}+3\left(\mathrm{~A}^2-\mathrm{I}\right) \\ & =\mathrm{A}^2+24\left(\mathrm{~A}^2-\mathrm{I}\right) \\ & =25…

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