JEE Main 2026 Mathematics Memory Based Question |21 Jan Shift 1

MEMORY BASED QUESTION 2026

21-01-26 S1

Question

If $A=\left[\begin{array}{ll}\alpha & 2 \\ 1 & 2\end{array}\right], B=\left[\begin{array}{ll}1 & 1 \\ \beta & 1\end{array}\right]$ and $A^2-4 A+2 I=0 ; B^2-2 B+I=0$, then $\left|\operatorname{adj}\left(A^3-B^3\right)\right|$ is equal to

Select the correct option:

-11

121

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution

Question Tags

JEE Main

Mathematics

Easy

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