(a) If A=\left[\begin{array}{ccc}-3 & -2 & -4 \ 2 & 1 & 2 \ ...

CBSE Class 12 Math 2023 Outside Delhi Set 1 Solved Paper

SECTION - D

This section comprises Long Answer type questions (LA) of 5 marks each.

Question : 32

Total: 38

(a) If A=[

],B=[

], then find AB and use it to solve the following system of equations :

‌x−2y=3
‌2x−y−z=2
‌−2y+z=3
OR
(b) If f(α)=[

], prove that f(α)⋅f(−β)=f(α−β)

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