Learn All Concepts of Chapter 3 Class 12 Matrices - FREE. Check - Matrices Class 12 - Full video

Last updated at Jan. 17, 2020 by Teachoo
Transcript
Ex 3.1, 10 The number of all possible matrices of order 3 ร 3 with each entry 0 or 1 is: (A) 27 (B) 18 (C) 81 (D) 512 Let A be the matrix of 3 ร 3 i.e. [โ 8(๐_11&๐_12&๐_13@๐_21&๐_22&๐_23@๐_31&๐_32&๐_33 )]_(3 ร 3) There are total 9 elements Each item can be filled in 2 ways (0 or 1) Hence, Number of matrices possible = 2 ร 2 ร 2 โฆโฆ. ร 2 = 29 = 512 So, D is the correct answer
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