Archive
2nd of March 2017
Mathematics
Q:

write the number of possible matrices of order 2x3 with entry 1 or 2

Sayan Maity - CBSE - Class XII Science

Thursday, March 02, 2017 at 17:56:PM

A:

begin mathsize 16px style Given space that space the space order space of space the space matrix space is space 2 straight x 3
So comma space the space number space of space elements space will space be space 2 straight x 3 equals 6
Each space entry space can space be space either space 1 space or space 2.
So comma space each space entry space can space be space filled space in space 2 space ways
Hence comma space the space number space of space possible space matrices equals 2 to the power of 6 equals 64
end style

Thursday, March 02, 2017 at 18:16:PM