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

ધારોકે \(A =\left[\begin{array}{ll}3 & -4 \\ 1 & -1\end{array}\right]\) અને B એ બે એવા શ્રેણિકો છે કે જેથી \(A ^{100}=100 B+ I\). તો \(B ^{100}\) ના તમામ ઘટકોનો સરવાળો ___ .

  1. A 0
  2. B 100
  3. C 1
  4. D -1
Verified Solution

Answer & Solution

Correct Answer

(A) 0

Step-by-step Solution

Detailed explanation

\(A=I+\left[\begin{array}{ll}2 & -4 \\ 1 & -2\end{array}\right]\), let \(M=\left[\begin{array}{ll}2 & -4 \\ 1 & -2\end{array}\right]\) \(M ^2=\left[\begin{array}{ll}0 & 0 \\ 0 & 0\end{array}\right]= M ^3= M ^4=\ldots= M ^{100}\)…
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