Q68.If for the matrix, A = [ α1 −αβ ], (1) 3 (2) 1 (3) 2 (4) 4
What This Question Tests
This question involves performing matrix multiplication of a given matrix with its transpose and equating it to an identity matrix to find the values of unknowns, then calculating the required expression.
Concepts Tested
Formulas Used
A = [[a, b], [c, d]]
A^T = [[a, c], [b, d]]
AA^T = I_2
📚 NCERT Sections This Tests
8.17 — Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 · Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
14.2 — Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 · Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
12.5 — A Hydrogen Atom Initially In The Ground Level Absorbs A Photon,
Physics Class 12 · Chapter 12
12.5 A hydrogen atom initially in the ground level absorbs a photon, which excites it to the n = 4 level. Determine the wavelength and frequency of photon.
📋 Question Details
- Chapter
- Matrices
- Topic
- Properties of matrices
- Year
- 2021
- Shift
- 25 Feb Shift 2
- Q Number
- Q68
- Type
- MCQ
- NCERT Ref
- Class 12 Mathematics Ch 3: Matrices
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