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Maths Determinants Class 12 MCQ and Assertion Questions | CBSE Short Quiz

Question 1 of 5

CBSE Board Exam 2024

If \(A=\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 3 & 0 \\ 0 & 0 & 5\end{array}\right]\), then \(A^{-1}\) is :

A \(\left[\begin{array}{ccc}\frac{1}{2} & 0 & 0 \\ 0 & \frac{1}{3} & 0 \\ 0 & 0 & \frac{1}{5}\end{array}\right]\) B \(\quad 30\left[\begin{array}{ccc}\frac{1}{2} & 0 & 0 \\ 0 & \frac{1}{3} & 0 \\ 0 & 0 & \frac{1}{5}\end{array}\right]\) C \(\frac{1}{30}\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 3 & 0 \\ 0 & 0 & 5\end{array}\right]\) D \(\frac{1}{30}\left[\begin{array}{ccc}\frac{1}{2} & 0 & 0 \\ 0 & \frac{1}{3} & 0 \\ 0 & 0 & \frac{1}{5}\end{array}\right]\)